Which of these is an unsaturated solution? choose all that apply.
o 50 g of kci in 50 g of water at 90°c
60 g of nh4cl in 100 g of water at 80°c
o 70 g of nh3 in 100 g of water at 20°c
50 g of nh4cl in 100 g of water at 60°c
80 g of kno3 in 100 g of water at 60°c
o 60 g of kl in 50 g of water at 10°c
Answers
C. 70 g of NH₃ in 100 g of water at 20°c and E. 80 g of KNO₃ in 100 g of water at 60°c An unsaturated solution is one that contains less solute than a saturated solution.
What is water?Water is a transparent, tasteless, odorless, and nearly colorless chemical substance. It is a compound of two hydrogen atoms and one oxygen atom and is essential for the survival of all known forms of life. Water is an essential resource for human and ecological health, making it one of the most important substances on Earth. Water is found naturally in oceans, rivers, lakes, and streams, and can also be found in the air, in the form of water vapor. Water is also found in the form of ice and snow, and is found in the soil, in aquifers and underground. Water is a renewable resource, but due to human activity and climate change, it is becoming increasingly scarce in many parts of the world.
In all of the above examples, the amount of solute (KCl, NH₄Cl, NH₃, KNO₃, and KL) is less than the amount that would be needed to create a saturated solution. Therefore, all of the above solutions are unsaturated.
To learn more about water
https://brainly.com/question/25326161
#SPJ4
Complete Question:
Which of these is an unsaturated solution? choose all that apply.
A. 50 g of kci in 50 g of water at 90°c
B. 60 g of nh4cl in 100 g of water at 80°c
C. 70 g of nh3 in 100 g of water at 20°c
D. 50 g of nh4cl in 100 g of water at 60°c
E. 80 g of kno3 in 100 g of water at 60°c
F. 60 g of kl in 50 g of water at 10°c
Related Questions
Even though the same amount of energy was transferred into both substances from the air, the isopropanol evaporated while the water did not. Why do you think the isopropanol changed phase, but the liquid water did not ... Earlier in the lesson, you observed isopropanol and water drops on a paper towel.HELP HELP PLS
Answers
Answer:
The isopropanol evaporated while the water did not because the molecules don't stick together as strongly as the molecules in the water do. The water would need more energy transferred in, in order to evaporate.
Explanation:
The isopropanol evaporates and the water does not because the heat capacity and the latent heat of isopropanol is far lesser than that of water.
The latent heat of vaporization is the amount of heat required by a given amount of substance to change its phase from liquid to gas. The latent heat of vaporization of isopropanol is far less than water, so at the same amount of heat, the isopropanol changes phase as it can easily evaporate even if a small amount of heat is provided. Whereas water requires to absorb a lot of heat energy to change its phase, since its latent heat of vaporization and specific heat capacity is very large as compared to isopropanol.
Learn more about latent heat :
https://brainly.com/question/5401454
Calculate the energy released when 100.0 g of steam at 110.0 °c are converted into ice at minus 30.0 °c
Answers
The energy released when 100.0 g of steam at 110.0 °C are converted into ice at minus 30.0 °C is 1.56 × 10^6 J.
To calculate the energy released, we need to determine the amount of heat energy required to cool the steam to 0 °C, then the amount of heat energy required to freeze the water, and finally the amount of heat energy to cool the ice to -30 °C.
First, we calculate the amount of heat energy required to cool the steam from 110.0 °C to 0 °C using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity of steam and ΔT is the change in temperature. The specific heat capacity of steam is 2.01 J/g °C.
Q1 = (100.0 g) × (2.01 J/g °C) × (110.0 °C – 0 °C) = 22,242 J
Next, we calculate the amount of heat energy required to freeze the water at 0 °C using the formula Q = mL, where Q is the heat energy, m is the mass and L is the latent heat of fusion of water. The latent heat of fusion of water is 334 J/g.
Q2 = (100.0 g) × (334 J/g) = 33,400 J
Finally, we calculate the amount of heat energy required to cool the ice from 0 °C to -30 °C using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity of ice and ΔT is the change in temperature. The specific heat capacity of ice is 2.06 J/g °C.
Q3 = (100.0 g) × (2.06 J/g °C) × (0 °C – (-30.0) °C) = 6,180 J
The total energy released is the sum of the three values calculated above:
Qtotal = Q1 + Q2 + Q3 = 22,242 J + 33,400 J + 6,180 J = 61,822 J = 1.56 × 10^6 J.
Learn more about heat energy here.
https://brainly.com/questions/29210982
#SPJ11
This question has two parts. First, answer part A. Then, answer part B.
Part A
What is a theme of the passage?
A.
Not everyone will agree with you all the time.
B.
There is more than one way to solve a problem.
C.
You can find the answers you seek if you look hard enough.
D.
People with different opinions can still find a way to get along.
Part B
Which sentence from the passage best helps to show the theme?
A.
“Dad was already in Colorado, but Mom stayed behind so that the twins Natalie and Mason could finish fifth grade at Oak School.”
B.
“Today, Natalie and Mason were helping to pack boxes, and they enjoyed looking at the old treasures, especially the photo albums.”
C.
“Mason wanted to know more, so they searched a baseball almanac.”
D.
“‘Oh, well, you can’t win them all,’ Natalie said.”
Answers
Part A. Then, answer Part B. Part A
In Passage 2, what theme is suggested by Graham’s situation?
D People will do whatever is necessary to keep what is important to them.
Part B
Which quotation helps develop the theme in Part A?
D “Graham turned to the old man and asked, ‘How are we going to find it?’” (paragraph 25)
Part A
Option D: This answer is correct. The man agrees to the risky proposition to search for buried treasure since it seems to be the only way for him to keep his family's property.
Part B
Option D: This answer is correct. This quotation shows that Graham is considering the man's proposition to look for buried treasure in the hopes of keeping his family's property
PLEASE HELP!!!! Explain the process that causes dew to form on blades of grass
Answers
Answer:
Explanation:
Dew forms when the object, such as the glass, cools down to the dew point temperature. Water molecules in the air continually bombard surfaces, like blades of grass If the object gets cold enough, and the air contains enough moisture, condensation exceeds evaporation, and the film grows into dew drops.
Using the information from Exercise 3.2.8 with D= disease, D C
= no disease, P= positive test result, and P C
= negative test result: what is Pr{D C
} ? 0.06 0.10 0.94 0.90
Answers
Pr{D C} = 0.94
The probability Pr{D C} represents the probability of not having the disease. In this case, the given information from Exercise 3.2.8 includes D (disease), D C (no disease), P (positive test result), and P C (negative test result). To find Pr{D C}, we need to consider the given probabilities.
The probability of having the disease, Pr{D}, is not explicitly given in the question. However, we can infer it by considering the complement of Pr{D C}. Since Pr{D C} represents the probability of not having the disease, the complement of Pr{D C} would represent the probability of having the disease.
Therefore, Pr{D} = 1 - Pr{D C}
Given that Pr{D C} = 0.06, we can calculate Pr{D} as follows:
Pr{D} = 1 - Pr{D C}
Pr{D} = 1 - 0.06
Pr{D} = 0.94
Hence, the probability of not having the disease (Pr{D C}) is 0.94.
Learn more about disease
brainly.com/question/943439
#SPJ11
which best describes elements found in a column of the periodic table? group of answer choices the elements are all found naturally in the same physical state. the elements have similar chemical properties. the elements have the same atomic number. the elements have the same-size atoms.
Answers
The best description of elements found in a column of the periodic table is that they have similar chemical properties. The elements in a column or group of the periodic table share the same number of valence electrons, which are responsible for the chemical behavior of the element.
This similarity in electron configuration leads to similar chemical properties, such as reactivity, electronegativity, and ionization energy. However, the elements in a column do not necessarily have the same atomic number or the same size atoms. In fact, the atomic size tends to increase as you go down a column due to the addition of more electron shells. Therefore, it is the similar electron configuration and resulting chemical behavior that define the elements in a column of the periodic table.
To know more about physical state visit:
https://brainly.com/question/29638464
#SPJ11
explain why the first ionization energy is much lower than the second ionization energy for an atom of sodium.
Answers
The lower first ionization energy of sodium is due to the relatively weak attraction between the outermost electron and the nucleus, as well as the shielding effect provided by the inner electrons.
The ionization energy refers to the amount of energy required to remove an electron from an atom or ion in its gaseous state. In the case of sodium, the first ionization energy is significantly lower than the second ionization energy. This can be explained by understanding the electron configuration and the principles of electron shielding and effective nuclear charge.
Sodium has an atomic number of 11, meaning it has 11 protons in its nucleus and 11 electrons surrounding it. These electrons are arranged in energy levels or shells, with the first shell containing 2 electrons and the second shell containing 8 electrons. The outermost electron in sodium is in the third energy level.
The first ionization energy is the energy required to remove the outermost electron from the atom. In sodium, this electron is relatively far from the nucleus and experiences less attraction to the positively charged protons.
Additionally, the outer electron in sodium experiences significant electron shielding from the inner electrons, meaning that the inner electrons partially shield the outer electron from the full attractive force of the nucleus.
As a result, it is easier to remove the outermost electron in sodium, and hence, the first ionization energy is relatively low. Once the outermost electron is removed, sodium becomes a positively charged ion (Na+).
The second ionization energy refers to the energy required to remove an electron from the Na+ ion, which now has a stronger effective nuclear charge due to the reduced electron-electron repulsion and decreased shielding effect. Consequently, it is more difficult to remove an electron from the Na+ ion, leading to a higher second ionization energy compared to the first ionization energy.
For more such questions on ionization energy visit:
https://brainly.com/question/30831422
#SPJ8
Help please ):
If these ions combined with \(Al^{3+}\), you would need three of them and two aluminum ions in the formula. Which group number on the periodic table is represented by the description?
Answers
The group number 16 on the periodic table is represented by the description .
The valency of group number 16 is - 2 . Hence , two other atom ( like aluminum ion ) is required .
Similarly , the valency of aluminium ion is + 3 . Hence , three of other atom( like oxygen ) is required .
Oxygen ions have a -2 charge with the formula \(O^{-2}\) . Aluminum ions have a 3+ charge with the formula \(Al^{+3}\) .
An ionic compound must be neutral , which means the positive and negative charges must be equal. So we need three oxygen ions to bond with two aluminum ion , and the formula for aluminum oxide is \(Al_{2} O_{3}\) .
Learn about periodic table please click here ,
https://brainly.com/question/11155928
#SPJ
Cr2O72− + 3HNO2 + 5H+ → 2Cr3+ + 3NO3− + 4H2O
which element is reduced in this reaction?
Answers
In the reaction Cr₂O₇²⁻ + 3HNO₂ + 5H+ → 2Cr³⁺ + 3NO₃⁻ + 4H₂O , Cr₂O₇²⁻ is reduced.
According to this equation:
Cr₂O₇²⁻ + 3HNO₂ + 5H+ → 2Cr³⁺ + 3NO₃⁻ + 4H₂O
The half-reactions are:
Oxidation: 3N (III) → 3N (V) + 6 e¹
reduction: 2Cr (VI) + 6 e⁻¹ → 2Cr (III)
HNO₂ is the reducing agent
Cr₂O₇²⁻ is an oxidizing agent
Oxidizing agent is always reduced. So, Cr₂O₇²⁻ is reduced.
A reducing agent loses electrons, so on the left side of the equation N in HNO₂ has an oxidation number of +3 and on the right side in NO₃⁻ it has an oxidation number of +5, so it has lost electrons. Thus, the reducing agent would be HNO₂.
To know more about oxidizing and reducing agent here
https://brainly.com/question/8891636
#SPJ1
An atom has 25 protons ,30 neutrons ,and 25 electrons.what is the charge of the atoms
Answers
ok so basically the answer is notijng
Answer:
+25
Explanation:
The charge of the nucleus of an atom with 25 protons is +25 regardless of the number of other particles.
BTW, I believe this is Magnesium... I am not sure, but that ingfo may help you more than I can...
the structure of the nacl crystal forms reflecting planes 0.541 nm apart. what is the smallest angle, measured from these planes, at which constructive interference of an x-ray beam reflecting off the two planes is observed? assume x-rays of wavelength 0.0649 nm are used? give your answer in degrees.
Answers
The smallest angle, measured from the reflecting planes, at which constructive interference of an X-ray beam is observed is approximately 27.2 degrees.
To determine the smallest angle of constructive interference, we can use Bragg's Law, which states that constructive interference occurs when the path difference between two waves is equal to an integer multiple of the wavelength. The formula is given as:
2d sin(θ) = nλ
Where:
d is the distance between the reflecting planes (0.541 nm)
θ is the angle between the incident X-ray beam and the planes (the desired angle)
n is the order of the interference (we are considering the first-order, so n = 1)
λ is the wavelength of the X-ray beam (0.0649 nm)
Rearranging the formula, we get:
sin(θ) = (nλ) / (2d)
θ = arcsin((nλ) / (2d))
Plugging in the values, we have:
θ = arcsin((1 * 0.0649 nm) / (2 * 0.541 nm))
θ ≈ 27.2 degrees
Therefore, the smallest angle at which constructive interference is observed is approximately 27.2 degrees.
To learn more about constructive interference, here
https://brainly.com/question/31857527
#SPJ4
When naming an ionic compound what must always
come first the anion or the cation? (Metal or
nonmetal)
Answers
Answer:
Cation / metal
Explanation:
When we named ionic compound we always write cation first. Let's take an example.
Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion. Both atoms are bonded together electrostatic attraction occur between anion and cations and ionic compound is formed. When we naming it we write " sodium " first which indicate sodium cation ( Na⁺) while anion which is Cl⁻ is always written at the end. When we naming ionic compound we ended the name of anion with "ide". Sodium indicate metal while chloride ion indicate non metal. it means metal comes first while naming ionic compound.
when a piece of metal was heated in a flame and then dropped into 2.00 x 102 ml of water at 22.5°c, the temperature of the water rose to 38.7°c. how much heat was transferred from the metal to the water?
Answers
The amount of heat transferred from the metal to the water is approximately 134,064 Joules.
To calculate the amount of heat transferred from the metal to the water, you can use the formula:
Q = m × c × ΔT
Where:
Q is the heat transferred (in Joules)
m is the mass of the water (in grams)
c is the specific heat capacity of water (approximately 4.18 J/g°C)
ΔT is the change in temperature (in °C)
First, you need to determine the mass of the water. The volume of the water is given as 2.00 x 10² mL, which is equivalent to 2.00 x 10² g (since the density of water is approximately 1 g/mL).
Next, calculate the change in temperature:
ΔT = final temperature - initial temperature
ΔT = 38.7°C - 22.5°C
Now, you can calculate the amount of heat transferred:
Q = m × c × ΔT
Substituting the values:
Q = (2.00 x 10²g) × (4.18 J/g°C) × (38.7°C - 22.5°C)
Calculate the value to find the amount of heat transferred from the metal to the water in Joules.
Q = (2.00 x 10²) × (4.18) × (16.2)
Calculating the final value:
Q ≈ 134,064 Joules
Therefore, the amount of heat transferred from the metal to the water is approximately 134,064 Joules.
Learn more about specific heat here:
https://brainly.com/question/31608647
#SPJ 4
Which type of bonds does potassium form? Which type of bond is most
common?
Answers
Answer:
forms an ionic bond. Potassium and iodine have very different electronegativities. The two atoms would form an ionic bond since ionic bonds form between atoms with a large difference in electronegativity
Explanation: look it up
how many atoms of zirconium are in the molecule of zirconium sulfide
Answers
Answer:
1 atom of zirconium
Explanation:
Zirconium sulfide or zirconium disulphide can be written as ZrS2.
1-ethylycloheptene was treated with mcpba, followed by sodium methoxide in methanol. what was the product?
Answers
The reaction of 1-ethylcycloheptene with MCPBA (meta-chloroperoxybenzoic acid) followed by sodium methoxide in methanol leads to the formation of an epoxide.
MCPBA is a peracid that is commonly used to convert alkenes into epoxides through an epoxidation reaction. It adds an oxygen atom to the double bond of the alkene, resulting in the formation of an oxirane ring.
In this case, when 1-ethylcycloheptene reacts with MCPBA, an epoxide is formed. The specific product will depend on the regiochemistry and stereochemistry of the starting compound. Without further information on the exact structure and conditions of the reaction, it is difficult to determine the exact product.
However, the general product can be represented as an epoxide derived from 1-ethylcycloheptene:
Epoxide
1−ethylcycloheptene+MCPBA+NaOMe/MeOH→Epoxide
The exact position and stereochemistry of the epoxide ring would be determined by the specific structure of 1-ethylcycloheptene and the reaction conditions used.
For more such questions on sodium methoxide
https://brainly.com/question/31237886
#SPJ4
Balancing Chemical Equations
I really need help
Answers
Answer:
2KClO3 ---2KCl + 3O2
2NaCl + F2 ----> 2NaF + Cl2
2AlBr3 + 3 K2SO4 ----> 6 KBr + Al2(SO4)3
A chemist has three different acid solutions. The first acid solution contains 20% acid, the second contains 30% and the third contains 60%. He wants to use all three solutions to obtain a mixture of 90 liters containing 40% acid, using 2 times as much of the 60% solution as the 30% solution. How many liters of each solution should be used? The chemist should use liters of 20% solution, 30% solution, and liters of 60% solution
Answers
The chemist should use 30 liters of the 20% solution, 20 liters of the 30% solution, and 40 liters of the 60% solution to obtain a mixture of 90 liters containing 40% acid.
Let's denote the number of liters of the 20% solution as x, the number of liters of the 30% solution as y, and the number of liters of the 60% solution as z.
According to the problem, we have the following information:
The total volume of the mixture is 90 liters: x + y + z = 90.
The desired percentage of acid solution in the mixture is 40%: (0.20x + 0.30y + 0.60z) / 90 = 0.40.
The chemist wants to use 2 times as much of the 60% solution as the 30% solution: z = 2y.
Now, we can solve these equations simultaneously to find the values of x, y, and z.
From equation 3, we have z = 2y.
Substituting this into equation 1, we get:
x + y + 2y = 90
x + 3y = 90 (equation 4)
From equation 2, we have:
(0.20x + 0.30y + 0.60z) / 90 = 0.40
Multiplying both sides by 90, we get:
0.20x + 0.30y + 0.60z = 36
0.20x + 0.30y + 0.60(2y) = 36 (since z = 2y)
0.20x + 0.30y + 1.20y = 36
0.20x + 1.50y = 36 (equation 5)
Now, we can solve equations 4 and 5 simultaneously to find the values of x and y.
Multiplying equation 4 by 0.20, we get:
0.20(x + 3y) = 0.20(90)
0.20x + 0.60y = 18
Subtracting this from equation 5, we eliminate x and solve for y:
0.20x + 1.50y - (0.20x + 0.60y) = 36 - 18
0.90y = 18
y = 18 / 0.90
y = 20
Substituting this value of y back into equation 4, we find:
x + 3y = 90
x + 3(20) = 90
x + 60 = 90
x = 90 - 60
x = 30
Since z = 2y, we have:
z = 2(20)
z = 40
Therefore, the chemist should use 30 liters of the 20% solution, 20 liters of the 30% solution, and 40 liters of the 60% solution to obtain a mixture of 90 liters containing 40% acid.
To know more about acid solutions:
https://brainly.com/question/28982585
#SPJ4
014
Question 5
(02.02 MC)
Which of the following is the best example of chemical weathering? (4 points)
a. Limestone rocks dissolving in water
b. Plant roots growing through concrete and splitting it
c. Waves carrying sand away from a beach
d. A large rock splitting into pieces because of ice
Answers
Answer:
my guess would be limestone disolving in water
Explanation:
Answer:
It is Limestone rocks dissolving in water
Explanation:
I did same exact quiz and I got it correct
you are asked to prepare 100ml of a 1.5m kbr solution. what mass of kbr do you need? show your calculation in the space provided. (molarity = moles / l)
Answers
17.23 g of KBr is required to prepare 100 ml of a 1.5 M KBr solution.
To prepare 100 ml of a 1.5 M solution of KBr, you need to determine the amount of KBr in moles required to achieve the desired concentration. The formula for molarity is given as:
Molarity = moles of solute / liters of solution
Rearranging the equation to solve for moles, we get:
moles of solute = Molarity x liters of solution
In this case, the desired molarity is 1.5 M and the volume of solution is 100 ml, which is Equal to 0.1 liters. Plugging these values into the equation, we get:
moles of KBr = 1.5 x 0.1 = 0.15 moles
Next, we need to convert the number of moles to mass, using the molecular weight of KBr. The molecular weight of KBr is 114.91 g/mol. So, the mass of KBr required to prepare 100 ml of a 1.5 M solution is:
mass of KBr = 0.15 moles x 114.91 g/mol = 17.23 g.
Learn more about solution here:
https://brainly.com/question/7932885
#SPJ4
15. Which of the following elements will not form a polar covalent bond with oxygen? A. Sodium B. Fluorine Oxygen D. Hydrogen
Answers
Answer:
C. oxygen
Explanation:
oxygen cannot for a polar covalent bond with another oxygen atom
Answer:
oxygen
Explanation:
What is the total pressure of a mixture of he and h2 if the partial pressures are 320 mm hg and 800 mm hg respectively
Answers
Answer:
1120 mm Hg
plus give brainliest
What is the equation for kinetic energy?
Answers
KE=1/2 mV^2
m=mass
V=velocity
during the hadean, the outermost crust of earth contained more fe (iron) than it does today. True or false?
Answers
This is true. The Hadean eon was the earliest eon of Earth's history, and it lasted from about 4.6 billion to 4 billion years ago. During this time, Earth was still very hot and molten, and the outermost crust was constantly being recycled.
This meant that the outermost crust was relatively young and had not had time to accumulate as much iron as it has today. Today, the outermost crust of Earth is about 40% iron. However, during the Hadean, the outermost crust may have been as much as 70% iron. This is because the iron was not yet as well-mixed with the other elements in the crust, and it was more likely to be found in the outermost layers.
As Earth cooled and the crust solidified, the iron began to mix more evenly, and the outermost crust became less iron-rich. However, the Hadean crust was still significantly more iron-rich than the crust is today. Banded iron formations (BIFs) are sedimentary rocks that are rich in iron. BIFs are thought to have formed during the Hadean eon, when the oceans were more oxygen-poor than they are today. The lack of oxygen in the oceans allowed iron to precipitate out of solution and form BIFs.
To know more about crust, click here:-
https://brainly.com/question/13428623
#SPJ11
Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor if its total mechanical energy is 41.70 J
Answers
To determine the height of the volleyball above the gym floor, we need to consider the conservation of mechanical energy.
The total mechanical energy of the volleyball includes both its kinetic energy and potential energy. The kinetic energy (KE) of an object is given by the formula: KE = (1/2) * mass * velocity^2 Given that the velocity of the volleyball is 16 m/s and the mass is 0.27 kg, we can calculate its kinetic energy: KE = (1/2) * 0.27 kg * (16 m/s)^2= 0.5 * 0.27 kg * 256 m^2/s^2 = 34.56 J the total mechanical energy (TME) of the volleyball is the sum of its kinetic and potential energies: TME = KE + PE41.70 J = 34.56 J + 0.27 kg * 9.8 m/s^2 * h.
learn more about :- mechanical energy here
https://brainly.com/question/29509191
#SPJ11
You are creating a carbon cycle poster in which direction would you draw arrows to show the movement of carbon through the process of respiration?
A. from the rock to the air
B. from the rock to the grass
C. from the air to the wolf
D. from the wolf to the air
Answers
50mL of oil is dissolved in 100mL of gasoline. What is the concentration of that solution?
Answers
Concentration = (amount of oil / total volume of solution) x 100%
The amount of oil in the solution is 50 mL, and the total volume of the solution is 100 mL + 50 mL = 150 mL (since the oil is dissolved in 100 mL of gasoline).
So, the concentration of the solution is:
Concentration = (50 mL / 150 mL) x 100% = 33.33%
Therefore, the concentration of the solution is 33.33%.
which is the correct formula for the compound formed between beryllium and nitrogen?
Answers
Answer:
Be3N2
Explanation:
u cross multiply with their subscripts
How many moles of KNO3 are in 500.0 mL of 2.0 M KNO3?
Answers
There is 1.0 mole of KNO₃ in 500.0 mL of a 2.0 M KNO₃ solution.
To determine the number of moles of KNO₃ in 500.0 mL of a 2.0 M KNO₃ solution, we need to use the equation:
moles = concentration (M) × volume (L)
Since 1 liter is equal to 1000 milliliters, we divide 500.0 mL by 1000 to get 0.5 L.
Next, we substitute the values into the equation:
moles = 2.0 M × 0.5 L
The concentration of 2.0 M indicates that there are 2.0 moles of KNO₃ in 1 liter of the solution. Therefore, multiplying the concentration (2.0 M) by the volume (0.5 L) gives us the number of moles of KNO₃:
moles = 2.0 M × 0.5 L = 1.0 mol
Hence, there is 1.0 mole of KNO3 in 500.0 mL of a 2.0 M KNO₃ solution.
know more about volume here:
https://brainly.com/question/29796637
#SPJ8
1. Write the formula and give the name for the compounds formed between the
following ions:
a. Cu2+ and Br-
d. Hg2+ and S2-
b. Fe2+ and 02-
e. Sn2+ and F-
c. Pb2+ and Cl-
f. Fe3+ and 02-
HELPPPP MEEEE PLEASEEEE
Answers
