What is the hydronium ion concentration in a 1. 0m h2so4 solution?.
Answers
Hydronium ion concentration in a 1.0 M H2SO4 solution is 2.0 M.
H2SO4 is a strong acid that dissociates completely in water, as follows:
H2SO4 + 2H2O → HSO4- + H3O+HSO4- + H2O → SO42- + H3O+
The sulfuric acid molecule donates two protons (hydrogen ions) to two water molecules to produce the hydronium ion and the hydrogen sulfate ion (HSO4-) ions in a solution. In this reaction, there are two H+ ions produced in the first reaction. H2SO4 dissociates completely to produce two hydrogen ions and one sulfate ion. As a result, the concentration of hydronium ions (H3O+) is twice as high as the concentration of the sulfuric acid solution (H2SO4).Thus, the hydronium ion concentration in a 1.0 M H2SO4 solution is 2.0 M.
H2SO4 is a strong acid that dissolves completely in water to produce two hydrogen ions and one sulfate ion. The hydronium ion concentration in a 1.0 M H2SO4 solution is 2.0 M.
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Related Questions
If you remove two protons and two electrons from a sulfur atom (S), what new element is formed?
A. Si
B. Al
C. Ar-2
D. Al+2
E. Si+2
Answers
If you remove two protons and two electrons from a sulfur atom (S), the resulting element is D., Si which has an atomic number of 14 If you remove two protons and two electrons from a sulfur atom (S), the new element formed is:
A.Si
Explanation:
1. A sulfur atom has 16 protons and 16 electrons.
2. Remove two protons: 16 - 2 = 14 protons.
3. Remove two electrons: 16 - 2 = 14 electrons.
4. The element with 14 protons is silicon.
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Value:1 What is the dilution of a solution if 5 ml of pond water is added to 20 ml of saline? *Write dilutions as a fraction1/10,ratio1:10or exponent10^-1)* What is the dilution factor of the same solution?
Answers
The dilution of the solution, when 5 mL of pond water is added to 20 mL of saline, is 1:5. The dilution factor of the same solution is 1/5.
Dilution refers to the process of reducing the concentration of a solution by adding a solvent to it. In this case, the initial solution contains 20 mL of saline, and when 5 mL of pond water is added to it, the total volume of the solution becomes 25 mL.
To express the dilution as a fraction or ratio, we compare the volume of the solute (saline) to the total volume of the solution. In this case, the ratio of the volume of the solute to the total volume is 20:25, which simplifies to 4:5 or 1:5. This means that for every 1 part of solute (saline), there are 5 parts of the total solution.
The dilution factor is the reciprocal of the dilution ratio. So, in this case, the dilution factor is 1 divided by 5, which equals 1/5. The dilution factor represents how much the concentration of the solute is reduced in the final solution compared to the original concentration.
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What pillar of sustainability is broken by recycling
electronics in India? Should the US make a law that electronics can
only be recycled in the US?
Answers
The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.
Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.
However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.
Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.
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Mention and discuss briefly the adverse effects of chemistry.
Answers
Depending on the chemical, these longer-term health effects might include:
organ damage. weakening of the immune system. development of allergies or asthma. reproductive problems and birth defects. effects on the mental, intellectual or physical development of children. cancer.24.00 ml of a 0.25 m naoh solution is titrated with 0.10m hcl. what is the ph of the solution after 24.00 ml of the hcl has been added? 13.40 13.17 11.56 12.88 7.00
Answers
The ph of the solution after 24.00 ml of the hcl has been added is 2.59.
Concentration is the abundance of a constituent divided by way of the overall volume of an aggregate. several sorts of mathematical descriptions may be outstanding: mass concentration, molar concentration, variety concentration, and extent awareness.
Calculation:-
C₁ = 0.25 M naoh
V₁ = 24 ml = 0.024 L
C₂ = 0.10 M
V₂ = 24.00 ml
concentration of acid concentration of base
concentration = N₁V₁ N₂V₂
= 0.024 L × 0.25 M = 0.10 × 0.024 L
= 6 × 10⁻³ N = 2.4 × 10⁻³ N
Net concentration = 6 × 10⁻³ - 2.4 × 10⁻³
= 2.6 10⁻³
pH = - log [ 2.6 10⁻³ ]
= 3 - log2.6
= 3 - 0.41
= 2.59
The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.
The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.
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cho hỗn hợp gồm alcl3 và fecl3 trình bày cách tách từng muối riêng ra khỏi hỗn hợp
Answers
Answer:
ném NaOH vào thì th AlCl3 tan hết còn lại kết tủa Fe(OH)3 lần.
Lọc kết tủa riêng phần dung dịch tan riêng
Rồi Cho HCl vô lại là xong
Explanation:
1. What is the molarity of a Mg(OH)2 solution if 30 mL is required to neutralize 85 mL
of a 2.0 M solution of HNO3?
Answers
Answer:
A solution is a homogeneous mixture of two or more chemical substances. If we have a solution
made from a solid and a liquid, we say that the solid is dissolved in the liquid and we call the
solid the solute and the liquid the solvent. Initially, we will consider only solutions of a solid in
water. If a solution has a small amount of solute in a large amount of solvent, we say that the
solution is dilute (or that we have a dilute solution). If a solution has a large amount of solute
for a certain amount of solvent, we say that the solution is concentrated (or that we have a
concentrated solution). We see that the terms dilute and concentrated are not precise and are
merely used to give a rough indication of the amount of solute for a given amount of solvent.
The amount of solute in a given amount of solvent (or solution) is called the concentration of
the solution. In this course, we will consider two ways of expressing concentration - mass
percent and molarity. We will consider molarity here and mass percent later.
Explanation:
Which correctly lists the three elements that geologists measure to determine the age of an organism's remains ?
O argon, nitrogen, and carbon-12
O carbon-14, nitrogen, and carbon-12
O nitrogen, potassium, and carbon-14
O carbon-12, potassium, and argon
Answers
Answer:
carbon-12, potassium, and argon
Explanation:
The three elements that geologists measure to determine the age of an organism's remains are carbon-12, potassium, and argon.
So, the second option is correct one.
How scientist determine age of the organism?The scientist determine the age of an organism by radiocarbon dating and nitrogen.After death of organisms, total carbon -14 content slowly disappearsIn radiocarbon dating, amount of carbon-14 left in organism is calculated relative to carbon-12 .To learn more about elements here,
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Help me i don’t know what to put here pls thank you!
Answers
if an electron is in a stationary state of an atom, is the electron at rest? if not, what does the term mean?
Answers
No, a stationary state is one that has a specific amount of energy, total angular momentum, and parity; in a stable state, the particle is moving while possessing all of these physical characteristics.
Who or what is an electron?A negative charge subatomic particle known as an electron can either be free or attached to an atom (not bound). Each of the three main types of components within an atom is an atom that is bonded to it; the other three are proton and neutrons.
What is the electron example?The electron, the smallest constituent part of an atom, has a negative surface charge. Protons and electrons are present in an atom in a neutral state in an equal number. The hydrogen ion only possesses one atom or one proton. On the other way, the uranium atom possesses 92 protons, which means 92 electrons.
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Why do you think there’s so much controversy around vaccines?
Answers
1. When frequency increases energy:
a) Increase and wavelength increases
b) Increases and wavelength decreases
c) decreases and wavelength decreases
d) decreases and wavelength increases
Answers
When frequency increases, as does the energy, but wavelength decreases. It also works vise versa; if wavelength were to increase, its frequency and energy will decrease.
A large balloon contain 1. 00 mol of helium in a volume of 22. 4 L at 0. 00 C. What pressure will the helium exert on its container?
Answers
The gas laws are a set of fundamental principles that describe the behavior of gases under different conditions of pressure, volume, and temperature. We can use the ideal gas law to solve this problem:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.
First, we need to convert the temperature from Celsius to Kelvin by adding 273.15:
T = 0.00 C + 273.15 = 273.15 K
Next, we can plug in the values we have:
P(22.4 L) = (1.00 mol)(0.0821 L·atm/mol·K)(273.15 K)
Simplifying:
P = (1.00 mol)(0.0821 L·atm/mol·K)(273.15 K)/(22.4 L)
P = 1.01 atm
Therefore, the helium will exert a pressure of 1.01 atm on its container.
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It is now 9:11 a. M. But when the bell rings at 9:13 a. M. Susie will be late for science class for the 3rd time this week. She must get from one side of the school to the other by hurrying down three different hallways. She runs down the first hallway, a distance of 35. 0 m. The second hallway is filled with students, and she covers its 48. 0 m length quickly. The final hallway is empty, and Susie sprints its 60. 0 m length. How fast does Susie need to go to make it to class on time?
Answers
To make it to class on time, Susie needs to go at an average speed of 1.18 m/s. Susie needs to maintain an average speed of approximately 1.18 meters per second to make it to class on time.
The total distance Susie needs to cover is 35.0 m + 48.0 m + 60.0 m = 143.0 m. She has 2 minutes (9:13 - 9:11) = 120 seconds to reach her destination. To find her required speed, we divide the total distance by the time: Speed = Distance / Time = 143.0 m / 120 s ≈ 1.18 m/s. Therefore, Susie needs to maintain an average speed of approximately 1.18 meters per second to make it to class on time. Susie has a total distance to cover of 35.0 m + 48.0 m + 60.0 m = 143.0 m. She has a time constraint of 2 minutes, which is equivalent to 120 seconds, to reach her class on time. To calculate her required speed, we divide the total distance by the time: Speed = Distance / Time = 143.0 m / 120 s ≈ 1.19 m/s. Therefore, Susie needs to maintain an average speed of approximately 1.19 meters per second to make it to her science class on time. This means she must move briskly through the hallways, ensuring she covers the required distance within the limited time frame.
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Which statement(s) is/are FALSE?
SELECT ALL THAT APPLY
The number of protons determines what type of
а
element an atom is.
b
Protons and neutrons repel each other and
position themselves far apart inside the atom.
Neutral atoms are made of specific numbers of
C protons and electrons but the number of neutrons
they possess can vary a little bit.
d All atoms are about the same size.
Answers
Answer:
D
Explanation:
not all atoms would be the same size. As for they vary scaleing from left to right in the periodic table.
If 50 mL of a 1:20 w/v solution is diluted to 1000 mL, what is the ratio strength (w/v)?
Answers
The ratio strength (w/v) of the diluted solution is 1:1000 or 0.1% w/v.
The original solution is a 1:20 w/v solution, which means that for every 1 gram of solute, there is 20 mL of solution. Using this information, we can calculate the amount of solute in the original 50 mL of solution:
1 gram / 20 mL = x grams / 50 mL
x = 2.5 grams of solute
When this 50 mL of solution is diluted to 1000 mL, the amount of solute remains the same, but the volume of the solution increases. The new ratio can be calculated by dividing the weight of the solute by the volume of the solution:
2.5 grams / 1000 mL = 0.0025 grams/mL
Converting this to a percentage w/v:
0.0025 grams/mL x 100 = 0.25% w/v
Therefore, the ratio strength is 1:1000 or 0.1% w/v.
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if you have 320.0 g of water at 25.00 ∘c in an insulated vessel and add 100.0 g of water at 95.00 ∘c, what is the final temperature of the mixture?
Answers
If you have 320.0 g of water at 25.00 ∘c in an insulated vessel and add 100.0 g of water at 95.00 ∘c, then the final temperature of the mixture is 54.12 ∘C.
Given: The mass of water at 25.00 ∘c = 320.0 g
The mass of water at 95.00 ∘c = 100.0 g
Let the final temperature be T
Final temperature is the temperature after the two samples have been mixed.
Method to solve the problem: Calculate the heat lost by the hot water. Calculate the heat gained by the cold water. Apply the law of conservation of energy to find the final temperature.
Calculate the heat lost by the hot water.
Qhot = m × c × ΔTQhot = 100.0 g × 4.184 J/g ∘C × (95.00 - T)⇒Qhot = 418.4 (95.00 - T) J
Calculate the heat gained by the cold water. Qcold = m × c × ΔTQcold = 320.0 g × 4.184 J/g ∘C × (T - 25.00)⇒Qcold = 1341.568 (T - 25.00) J
Apply the law of conservation of energy. Qhot = Qcold418.4 (95.00 - T) = 1341.568 (T - 25.00)⇒39959.2 - 418.4 T = 1341.568 T - 33539.2⇒1360.968 T = 73598.4⇒T = 54.12∘C
Final temperature of the mixture is 54.12 ∘C.
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What are the advantages of the HHI over concentration ratios in measuring the degree of concentration in an industry
Answers
The HHI offers a more comprehensive, weighted, and dynamic approach to measuring market concentration, making it a valuable tool for assessing the competitive landscape and potential antitrust concerns within an industry.
The Herfindahl-Hirschman Index (HHI) offers several advantages over concentration ratios when measuring the degree of concentration in an industry.
Firstly, the HHI takes into account the entire distribution of market shares within an industry, whereas concentration ratios only consider a few top firms. By including information about all firms in the market, the HHI provides a more comprehensive and accurate assessment of market concentration.
Secondly, the HHI assigns greater weight to larger firms, reflecting their actual market influence. This weighting scheme captures the relative significance of different firms and provides a more nuanced understanding of market concentration.
Furthermore, the HHI is a continuous measure that can detect even small changes in market concentration over time. This makes it more sensitive to shifts in market dynamics compared to concentration ratios, which may only provide discrete or limited information.
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look at the picture
Answers
Answer:
The strong electric force.
Explanation:
Trust me. If its wrong, comment on this, don't delete it. If someone else answers with the wrong question than other students might get the answer wrong. So if its right, say that it is, if its wrong, tell others what the real answer is.
Use to answer Question 1-2. The potential energy diagram for a chemical reaction
is shown below. Each interval on the axis labeled "Potential energy (kJ) represents
40kJ.
Potential Energy (k
Reaction Coordinate
Answers
The activation energy of the reaction is 40 Kj/mol
What is the activation energy?Activation energy is the amount of energy required for a chemical reaction to occur. In other words, it's the minimum energy that molecules must possess in order to react with one another. The activation energy can be thought of as the height of a hill that the reactants must climb in order to reach the other side.
The activation energy is a key factor in determining the rate of a chemical reaction. Generally, reactions with higher activation energies occur more slowly than those with lower activation energies.
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How do elements differ going from left to right across a period on the periodic table?
please choose one
They become more valuable.
They become lighter.
They become more radioactive.
Their atomic number increases.
Answers
Reading chemical symbols
Answers
Answer:
do u need answer for all of them?
what is the source of hydrogen during the loss of the leaving group to form the free amine? ammonium is used to generate hydrogen gas during the reaction. hydrogen gas is pumped into the solution from an external source. water donates two protons during this phase of the reaction. hexane donates two protons during this phase of the reaction. both hydrogen gas is pumped into the solution from an external source and hexane donates two protons during this phase of the reaction.
Answers
The source of hydrogen during the loss of the leaving group to form the free amine is water donates two protons during this phase of the reaction, option C.
Solar energy, or electromagnetic radiation, is produced in large quantities by the sun. Only a small portion of this energy, known as "visible light," is visible to humans. Waves may be used to explain and quantify how solar energy moves. The distance between two successive, comparable locations in a succession of waves, such as from crest to crest or trough to trough, is known as the wavelength and allows scientists to calculate the energy of a wave.
A certain range of wavelengths characterises each form of electromagnetic radiation. Less energy is carried when the wavelength is longer (or looks to be stretched out). The most energy is carried by short, tight waves. It might seem illogical at first, but picture a moving rope to help you understand. A person can move a rope in long, broad waves with little effort. One would have to use much more force to make a rope move in short, tight waves.
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An example of a physical property of an element is the element's ability to what?
Answers
Explanation:
Appearance, melting point, density, solubility, polarity
The molar heat of vaporization for liquid water is 40.6 kJ/mole.
How much energy is required to change 2.6 g of liquid water to steam if the water is already at 100oC?
Answers
The energy required to change 2.6 g of liquid water to steam if the water is already at 100°C is 5.85 kJ
First, we need to convert the given mass of water from grams to moles by dividing it by the molar mass of water.
The molar mass of water is approximately 18.02 g/mol, so:
number of moles of water = 2.6 g ÷ 18.02 g/mol ≈ 0.144 moles
We can use the formula:
ΔHvap = n * Hvap
where ΔHvap is the heat of vaporization, n is the number of moles of water, and Hvap is the molar heat of vaporization for water.
Plugging in the values we have:
ΔHvap = 0.144 mol * 40.6 kJ/mol
ΔHvap = 5.85 kJ
So, it requires 5.85 kJ of energy to change 2.6 g of liquid water to steam at 100°C.
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You've made a hot drink by dissolving a teaspoon of instant coffee and a teaspoon of sugar in a cup of hot water. Which of the following statements is true? Group of answer choices The water is the solute portion of the drink. The instant coffee and sugar dissolve because they have no charged regions to repel the partial positive and partial negative regions of the water molecules. The instant coffee and sugar are solvents. You've just prepared an aqueous solution.
Answers
Answer: The statement, you've just prepared an aqueous solution is true.
Explanation:
When one or more number of substances are dissolved in a solvent like water then solution formed is called an aqueous solution.
For example, when a hot drink is made by dissolving a teaspoon of instant coffee and a teaspoon of sugar in a cup of hot water is an aqueous solution.
Here, both coffee and sugar are solute whereas hot water is the solvent.
Thus, we can conclude that the statement, you've just prepared an aqueous solution is true.
How many total electrons can the d orbitals hold?
A. 10
B. 6
C. 3
D. 2
Answers
Answer:
10
Explanation:
thats the max
calculate the composition, in weight percent, of an alloy that contains 105 kg of iron, 0.2 kg of carbon, and 1.0 kg of chromium.
Answers
The mass percentage of carbon in weight percent, of an alloy that contains 105 kg of iron, 0.2 kg of carbon, and 1.0 kg of chromium is 0.016.
The mass percent formula for each element is: Typically, mass is measured in grammes. Mass percent is sometimes known as weight percentage or w/w%. The molar mass is the sum of all the atom masses in one mole of the substance. The total of all mass percentages should equal 100%. The masses included in the equations above must all be stated in grammes, and each component's chemical formula needs to be expressed as the secondary units on its corresponding numerical amount. Therefore, if a different unit is used to indicate the quantity of a solute, solvent, and solution
mass percentage of C= 0.2 /12 = 0.016
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2. Two glasses full of water are left out on a table over
night. Both glasses have a diameter of 10
centimeters, but one is twice as tall as the other.
Which glass do you expect to lose more liquid to
evaporation in a short amount of time?
A.The taller glass
B.The shorter glass
C.They both lose the same amount
D.No evaporation takes place
Answers
Answer: C
Explanation: The evaporation rate depends on the exposed surface of liquid as long as both glasses stay at the same temperature. Since both glasses have the same surface area, they should both evaporate at the same rate.
A compound is found to have an empirical formula of ch2o. What is the molecular formula when the molecular weight is 180. 0 grams?.
Answers
The empirical formula of a compound represents the simplest whole number ratio of atoms of each element in the compound. Empirical formula indicates that the molecule is composed of one carbon atom, two hydrogen atoms, and one oxygen atom, giving a formula unit of CH2O. Therefore, the formula of the compound can be represented as CH2O.
Given molecular weight is 180 grams. We can determine the molecular formula of the compound using the formula:
Molecular formula = Empirical formula × n
Where n is the factor by which the empirical formula is multiplied to obtain the molecular formula. We need to determine the value of n.
We know the molecular weight of the compound, and we can calculate the molecular weight of the empirical formula:
Empirical formula weight = (1 × atomic weight of carbon) + (2 × atomic weight of hydrogen) + (1 × atomic weight of oxygen)= (1 × 12.01) + (2 × 1.01) + (1 × 16.00)= 30.03 g/mol
Now, we can determine the factor n:
Molecular weight / Empirical formula weight= 180.00 / 30.03
= 5.99
≈ 6
Therefore, the molecular formula of the compound is six times the empirical formula:
Molecular formula= Empirical formula × n
= CH2O × 6
= C6H12O6
In chemistry, a molecular formula is a representation of a molecule that specifies the number and type of atoms present in a molecule. The molecular formula gives the exact number of atoms of each element in a molecule. It represents the total number of atoms that constitute a molecule. On the other hand, the empirical formula is the simplest whole-number ratio of atoms in a compound. It gives the relative numbers of atoms of each element in a compound. The molecular formula is the multiple of the empirical formula by an integer. The relationship between the molecular formula and empirical formula is given by:
Molecular formula = Empirical formula × n
Where n is an integer. If we know the empirical formula of a compound and the molar mass of the compound, we can determine the molecular formula of the compound by finding the value of n. The molar mass of the empirical formula can be calculated by adding the atomic masses of each atom present in the formula. Once we have the molar mass of the empirical formula, we can find the value of n by dividing the molar mass of the compound by the molar mass of the empirical formula. Once we have the value of n, we can multiply the empirical formula by n to obtain the molecular formula of the compound. In this question, we were given the empirical formula of a compound as CH2O and the molar mass of the compound as 180 g/mol. We calculated the molar mass of the empirical formula as 30.03 g/mol. We then found the value of n by dividing the molar mass of the compound by the molar mass of the empirical formula. We found the value of n to be 6. Therefore, the molecular formula of the compound is six times the empirical formula, which is C6H12O6.
We can say that the molecular formula of a compound can be determined if we know the empirical formula of the compound and the molar mass of the compound. The molecular formula is obtained by multiplying the empirical formula by an integer, which can be calculated by dividing the molar mass of the compound by the molar mass of the empirical formula. The molecular formula gives the exact number of atoms of each element in a molecule. In this question, we found the molecular formula of a compound whose empirical formula is CH2O and molar mass is 180 g/mol. We found the molecular formula to be C6H12O6.
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