The leakage rate of toluene is 0.0216 in³/s.
When a hole develops in a pipeline containing toluene with a specific gravity of 0.866, and the pressure at the point of the leak is 100 psig, we are to find out the leakage rate. It is important to note that leakage rate is the rate of fluid loss per unit of time. To find the leakage rate, we use Torricelli’s law, which states that the fluid’s leakage rate is proportional to the square root of the diameter of the hole in the container holding the fluid. Also, the leakage rate is inversely proportional to the square root of the fluid's specific gravity.
Thus, leakage rate = Cd x A x (√2gh) x 1/√SG
Where;
Cd = Coefficient of discharge
A = Area of the hole
H = The height of the liquid
SG = Specific gravity
Now, we can substitute the given values into the equation to get the leakage rate.
Area of hole = (π/4)d²
Where d = 0.20 in
Area of hole = (π/4) (0.20)²
Area of hole = 0.0314 in²
From the question, Specific gravity, SG = 0.866
Height of liquid, h = pressure/γ (γ is the specific weight of toluene)
Specific weight, γ = Specific gravity x gravitational acceleration
γ = 0.866 x 32.174
γ = 27.89 lbm/ft³
Hence, h = 100/ (27.89/144) = 52.17 ft.
Coefficient of discharge, Cd = 0.61
Leakage rate = 0.61 x 0.0314 x √(2 x 32.174 x 52.17) x 1/√0.866
Leakage rate = 0.61 x 0.0314 x 11.83 x 0.939
Leakage rate = 0.0216 in³/s.
Thus, the leakage rate is 0.0216 in³/s.
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what is the chemical formula for muscotive
The chemical formula of muscovite is given as (KF)₂(Al₂O₃)₂(SiO₂)(H₂O).
What is Muscovite?The mineral muscovite is very useful in the formation of rocks. It is composed of aluminum and potassium in the hydrated form and is part of the mica family. It can be found in igneous, metamorphic, and sedimentary rocks.
Rocks are massive structures which could be found above or below the earth's surface. They are formed by molten magma or by the deposition of materials in layers overtime. Some types of rocks are formed from changes in existing rocks.
The Muscovite could be used in cosmetics as well as to make a paint to shine The chemical formula of muscovite is given as (KF)₂(Al₂O₃)₂(SiO₂)(H₂O). We can see that it contains the elements aluminum, potassium and silicon.
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Uranium–232 has a half-life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium–232. How much uranium was originally present?
Answer:
Original amount of uranium is 11.3 g.
Explanation:
Given data:
Half life of uranium = 68.9 years
Time taken in decaying= 206.7 years
Amount left after decaying = 1.40 g
Original amount of uranium = ?
Solution;
Formula:
K = 2.303/t log[A₀]/[A] ..... (1)
A₀ = initial amount
A = amount left after decaying
Value of K from first order kinetics.
Half life of uranium = 0.693 /K
68.9 years = 0.693 /k
k = 0.693/68.9 years
k = 0.0101 year⁻¹
Now we will put the values in formula (1)
K = 2.303/t log[A₀]/[A]
0.0101 year⁻¹ = 2.303/206.7 year log [A₀]/[1.40 g]
[A₀] = 11.3g
Original amount of uranium is 11.3 g.
Answer:
11.2 is the answer, the guy above just copied it from a guy on another question I think. And they are both wrong. 11.3 is not the answer.
HELPPPP PLEASEEEE
How many moles of NaCl are present in a solution with a molarity of 8.20M and 125 mL of solution?
1.025 moles of NaCl are present in a solution with a molarity of 8.20M and 125 mL of solution. Details about molarity can be found below.
How to calculate molarity?The number of moles of a solution can be calculated by multiplying the molarity of the solution by its volume. That is;
no of moles = molarity × volume
According to this question, a solution has a molarity of 8.20M and volume of 125 mL of solution.
no of moles = 8.20 × 0.125
no of moles = 1.025moles
Therefore, 1.025 moles of NaCl are present in a solution with a molarity of 8.20M and 125 mL of solution.
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How many individual orbitals does carbon use for all of its electrons? Remember, there are two electrons in each filled orbital
Answer:
Three orbitals
Explanation:
The electronic configuration of carbon is given as follows;
1s²2s²2p²
Therefore, out of the six electrons of the carbon atoms, 4 fill the 1s and 2s orbitals with 2 electrons each, while the two remaining electrons are situated in the 2p orbital, with the electrons in the 2p orbital will remain unpaired such that they will have similar quantum numbers in accordance with Pauli exclusion principle.
A soccer player applies a force of 56.6 N to a soccer ball while kicking it. If the ball has a mass of 0.46 kg, what is the acceleration of the soccer ball?
Answer:
\(a=123.04\ m/s^2\)
Explanation:
Given that,
Force applied to a soccer player, F = 56.6 N
The mass of the ball, m = 0.46 kg
We need to find the acceleration of the soccer ball. The force acting on the ball is given by :
F = ma
Where
a is the acceleration
\(a=\dfrac{F}{m}\\\\a=\dfrac{56.6 }{0.46 }\\\\a=123.04\ m/s^2\)
So, the required solution is \(123.04\ m/s^2\).
What is the contour rule or global rule in chemistry, and how is it used to determine the stereochemistry of a molecule?
a. The contour or global rule in chemistry is a principle used to determine the stereochemistry of a molecule.
b. The contour rule is used in conjunction with other principles of stereochemistry to determine the overall shape of a molecule and the arrangement of its constituent atoms in space.
The contour rule or global rule states that the three-dimensional arrangement of atoms in a molecule can be determined by examining the sequence of atoms along the longest chain of carbon atoms, and the direction of the bond connecting each atom to its neighbor. If the sequence of atoms along the longest chain of carbon atoms is arranged in a clockwise direction, the molecule is said to have R-configuration (from the Latin word rectus, meaning right). If the sequence is arranged in a counterclockwise direction, the molecule is said to have S-configuration (from the Latin word sinister, meaning left).
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1.00 g of carbon is combusted in a limited supply of pure oxygen. 0.50g of the carbon combusts
to form CO₂ and 0.50g of the carbon combusts to form CO.
The resultant mixture of CO₂ and CO is passed through excess NaOH(aq) and the remaining gas
is then dried and collected.
What is the volume of the remaining gas? (All gas volumes are measured at 25°C and
1 atmosphere pressure.)
A 1dm³
B 1.5 dm³
C 2 dm³
D 3 dm³
Answer:
Explanation:d
Materials that allow electricity to flow through them easily are called conductors which of these would be a good conductor of electricity?
Group of answer choices
Carbon
Steel
Rubber
Plastic
What is the electron configuration of the element in group 13 and period 3 on the periodic table? *
O [Ar] 452
O [Ne] 3s23p2
O [Ne] 3s23p'
O [Ar] 4s23d104p2
Answer:
The 3rd option is correct
Explanation:
The element in group 13 and period 3 is aluminium which has the electron configuration
\(1{s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{1} \)
or [Ne] 3s^2 3p^1
Calculate the approximate volume of a 0.600 mol sample of gas at 15 °C and a pressure of
1.0 atm.
1) List known values.
sample: 0.600 mol
Pressure: 1.0 atm
Temperature: 15ºC
Constant: 0.082057 L⋅atm⋅K−1⋅mol−1
List unknown values
Volume:
2) Set the equation and solve for V.
\(PV=\text{nRT}\)\(\frac{PV}{P}=\frac{nRT}{P}\)\(V=\frac{nRT}{P}\)3) Converting to proper units.
15ºC + 273.15 = 288.15 K
4) Plug in known values.
n: 0.600 mol
R: 0.082057 L⋅atm⋅K−1⋅mol−1
T: 288.15 K
P: 1.0 atm
\(V=\frac{(0.600\text{mol)}(0.082057L\cdot\text{atm}\cdot K^{-1}\cdot mol^{-1})(288.15\text{ K)}}{1.0\text{ atm}}=14.18683\text{ L}\)The sample will occupy a volume of 14.19 L.
Pls help me I don’t know how to do this
Explanation:
We have a 63.9 g sample of calcium hydroxide. First we have to convert those grams into moles. To do that we have to use the molar mass of calcium hydroxide.
Calcium hydroxide = Ca(OH)₂
molar mass of Ca = 40.08 g/mol
molar mass of O = 16.00 g/mol
molar mass of H = 1.01 g/mol
molar mass of Ca(OH)₂ = 1 * 40.08 g/mol + 2 * 16.00 g/mol + 2 * 1.01 g/mol
molar mass of Ca(OH)₂ = 74.10 g/mol
mass of Ca(OH)₂ = 63.9 g
moles of Ca(OH)₂ = 63.9 g /(74.10 g/mol)
moles of Ca(OH)₂ = 0.862 moles
In 1 molecule of Ca we have 2 atoms of O. So in 1 mol of Ca(OH)₂ we will have 2 moles of O atoms.
1 mol of Ca(OH)₂ = 2 moles of O atoms
moles of O atoms = 0.862 moles of Ca(OH)₂ * 2 moles of O /1 mol of Ca(OH)₂
moles of O atoms = 1.724 moles
One mol is similar to a dozen. When we say that we need a dozen eggs we know that we need 12 eggs. If we want a mol of eggs, we want 6.022*10^23 eggs. So one mol of something is 6.022 * 10^23 of that.
1 mol of O atoms = 6.022 * 10^23 atoms
n° of O atoms = 1.724 moles * 6.022 * 10^23 atoms/1 mol
n° of O atoms = 1.04 * 10^24 atoms
Answer: In a 63.9 g sample of Ca(OH)₂ we have 1.04 *10^24 atoms of oxygen.
Meera wants to improve the percolation rate and fertility of clayey soil what should she add to the soil ?
Select the correct answer.
Which sentence is a scientific statement?
A.
Long hair looks better than short hair.
B.
Brick structures insulate better than wooden structures.
C.
Milkshakes should always be sweetened with honey.
D.
There is a large, apelike creature living in the Himalayas.
Answer:
B
Explanation:
Most of these are opinions. the reason that it is not d is because it is not something that can be scientifically proven. b can be proven by facts. hope this helps!
an aqueous solution of gold nitrate, au(no3)3 undergoes electrolysis in order to plate on a necklace, requiring 0.50 hours using 4.50 amperes of current. what mass of gold in grams is plated on the necklace? faraday's const
5.52 grams mass of gold will be plated on the necklace.
What is mass?
Faraday's constant is 96,485 Coulombs per mole.
To calculate the mass of gold plated on the necklace, we need to know the amount of charge that has passed through the electrolytic cell during the electrolysis process. We can calculate the charge using the equation:
charge = current x time
charge = 4.50 A x 0.50 h x 3600 s/h = 8100 C
Next, we need to calculate the moles of electrons involved in the electrolysis process. Each mole of \(Au(NO_{3})_{3}\) requires 3 moles of electrons to reduce \(Au_{3}^{+}\) to metallic gold. So, the moles of electrons is:
moles of electrons = charge / Faraday's constant / 3
moles of electrons = 8100 C / (96,485 C/mol) / 3 = 0.0280 mol
Finally, we can calculate the mass of gold using the molar mass of gold, which is 196.97 g/mol:
mass of gold = moles of electrons x molar mass of gold
mass of gold = 0.0280 mol x 196.97 g/mol = 5.52 g
Therefore, 5.52 grams of gold will be plated on the necklace.
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Complete question is: an aqueous solution of gold nitrate, \(Au(NO_{3})_{3}\)undergoes electrolysis in order to plate on a necklace, requiring 0.50 hours using 4.50 amperes of current. 5.52 grams mass of gold is plated on the necklace.
someone help ill give brainliest.
1. How does the biomagnification work? How does this buildup of chemicals affect the environment? How can this be reduced?
2. Define mutagens and teragens.
3. Why do some toxins affect people, animals, or the environment differently?
4. Identify an environmental activist or group who has brought attention to an issue. Research the issue and the primary individuals involved.
5. Research a current public issue concerning an environmental hazard. Discuss the issue, the causes and possible solutions.
Biomagnification occurs as a result of the buildup of toxins in living organisms in a food chain.
Mutagens are agents that cause mutation whereas teragens are agents that cause cancer.
What is biomagnification?Biomagnification is the buildup of toxins in living organisms in a food chain.
For example, a human who eats fish from a toxic water body will have a build up of toxins from the fish as well as from the water body.
Build up of chemicals in the environment lead to pollution.
This can be reduced by proper water disposal methods.
What are mutagen and teragens?Mutagens are agents that cause mutation whereas teragens are agents that cause cancer. Examples are ionizing radiation and certain chemicals.
Toxins affects people, animals, or the environment differently because of the difference in the genetic makeup of the organisms as well as the biotic and abiotic factors in the environment.
An example of an environment activist is Greta Thurnberg, who as brought to fore the issue of climate change due to human activities such as environmental pollution.
In conclusion, environmental pollution leads to adverse effects in people, animals and the environment.
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Biomagnification occurs as a result of the buildup of toxins in living organisms in a food chain.
Mutagens are agents that cause mutation whereas teragens are agents that cause cancer.
What is biomagnification?
Biomagnification is the buildup of toxins in living organisms in a food chain.
For example, a human who eats fish from a toxic water body will have a build up of toxins from the fish as well as from the water body.
Build up of chemicals in the environment lead to pollution.
This can be reduced by proper water disposal methods.
What are mutagen and teragens?
Mutagens are agents that cause mutation whereas teragens are agents that cause cancer. Examples are ionizing radiation and certain chemicals.
Toxins affects people, animals, or the environment differently because of the difference in the genetic makeup of the organisms as well as the biotic and abiotic factors in the environment.
An example of an environment activist is Greta Thurnberg, who as brought to fore the issue of climate change due to human activities such as environmental pollution.
In conclusion, environmental pollution leads to adverse effects in people, animals and the environment.
after searching for artificial sweeteners, do you think it is appropriate to have diet pop available in your school?
You dissolve 0.66 g of potassium chloride (KCl) in 700 ml of water.What is the molarity of the solution?(From the periodic table: 1 mol K = 39.10 g; 1 mol Cl = 35.453 g)=Enter the value rounded to three decimal places with no units
Answer
0.009 mol/L
Explanation
Given:
Mass of KCl = 0.66 g
Volume of water = 700 mL = 0.7 L
From the periodic table: 1 mol K = 39.10 g; 1 mol Cl = 35.453 g
What to find:
The molarity of the solution
Step-by-step solution:
The formula to calculate molarity is:
\(\text{Molarity }=\frac{Mole}{Volume\text{ in L}}\)The first step is to calculate the molar mass of KCl
KCl = Mass of 1 mol K + Mass of 1 mol Cl
KCl = 39.10 g + 35.453 g
KCl = 74.553 g
So the molar mass of KCl = 74.553 g/mol
The next step is to determine the number of moles of KCl in 0.66g of KCl:
\(\text{Mole }=\frac{Mass}{Molar\text{ mass}}=\frac{0.66\text{ g}}{74.553\text{ g/mol}}=8.852762464\times10^{-3}mol\)Put the values of mole and volume into the molarity formula above to determine the molarity of the solution:
\(\begin{gathered} \text{Molarity }=\frac{8.852762464\times10^{-3}\text{ mol}}{0.7\text{ L}}=0.00885276molL^{-1} \\ To\text{ thr}ee\text{ decimal places,} \\ \text{Molarity }=0.009\text{ }molL^{-1} \end{gathered}\)The molarity is 0.009 mol/L
An unknown salt, M2z, has a Ksp of 6.6 x 10-12. Calculate the solubility in mol/L of M2Z. Select one: a. 4.7 x 10-5M O b. 1.2 x 10-4M O c. none of the above O d. 1.3 x 10-6M O e. 2.6 x 10-6M
The solubility of M2Z in mol/L is approximately 1.3 x 10^-4 M. The correct answer is b. 1.2 x 10^-4 M, as it is the closest option to the calculated value.
To calculate the solubility in mol/L of an unknown salt M2Z, given its ksp value (6.6 x 10^-12).
The solubility product constant (ksp) is an equilibrium constant that describes the solubility of a slightly soluble ionic compound. For M2Z, the dissolution equation is:
M2Z (s) ⇌ 2M^+ (aq) + Z^2- (aq)
The Ksp expression is: Ksp = [M^+]²[Z^2-]
Let x be the solubility of M2Z in mol/L. Then, [M^+] = 2x and [Z^2-] = x. Substituting these values into the Ksp expression:
Ksp = (2x)² * x
Now plug in the given Ksp value (6.6 x 10^-12):
6.6 x 10^-12 = (4x^3)
To find x, the solubility of M2Z:
x = (6.6 x 10^-12 / 4)^(1/3)
x ≈ 1.3 x 10^-4 M
So, the solubility of M2Z in mol/L is approximately 1.3 x 10^-4 M. The correct answer is b. 1.2 x 10^-4 M, as it is the closest option to the calculated value.
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When more than one variable changes during a scientific experiment,
A.
the outcome of the experiment is linked to the variable that changes first.
B.
the outcome of the experiment is linked to the variable that changes last.
C.
the outcome of the experiment is linked to the variable that changes the most.
D.
the outcome of the experiment may not be linked to any one specific variable.
Quick chem question!
I’ll mark BRAINLIEST!!!!! :)
Match up the characteristics below with the type of molecular bond they describe. Bonds found in Halite (between Na+ and Cl-) Bonds found between Si and O in the Si-O tetrahedron Bonds inside the water molecule (between the H and O ) Bonds that exist between two water molecules Strongest bond type Weakest bond type Bonds that are used by water to dissolve sal
The characteristics and the type of molecular bond they describe:
1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond
2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond
3. Bonds inside the water molecule (between the H and O): Covalent bond
4. Bonds that exist between two water molecules: Hydrogen bond
5. Strongest bond type: Covalent bond
6. Weakest bond type: Van der Waals bond
7. Bonds that are used by water to dissolve salt: Ionic bond
The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.
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I need help with this! I don't fully understand it
Answer:
1. highest is 25.7c° and lowest is 20.0c°
2.Is Exothermic. An Endothermic Reaction is a chemical reaction that absorbs energy in the form of light or heat. In it, the energy or enthalpy of the reactants is less than that of the products. An Exothermic Reaction is a chemical reaction that gives off energy in the form of light or heat.
3. Reactans.
4. The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.
Which of the following 0.150 m solutions has the
greatest boiling-point elevation?
Mg(NO3)2
NaNO3
C2H4(OH)2
The solution with the greatest boiling-point elevation among the given options is Mg(NO₃)₂.
The boiling-point elevation of a solution depends on the concentration of solute particles. In this case, we have three solutions: Mg(NO₃)₂, NaNO₃, and C₂H₄(OH)₂.
Mg(NO₃)₂ dissociates into three ions: Mg²⁺ and two NO₃⁻ ions. NaNO₃ dissociates into two ions: Na⁺ and NO₃⁻. C₂H₄(OH)₂ does not dissociate, so it remains as one molecule.
Since the boiling-point elevation is directly proportional to the number of solute particles, Mg(NO₃)₂, with three ions per formula unit, will have the greatest boiling-point elevation. NaNO₃ has two ions per formula unit, and C₂H₄(OH)₂ has no ionization, resulting in fewer solute particles and lower boiling-point elevation compared to Mg(NO₃)₂.
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if you help me i'll help you
Which piece of information would be most helpful indetermining whether a hydrocarbon is saturated orunsaturated?a the melting point of the hydrocarbonb the number of carbon atomsc the number of hydrogen atomsdthe type of bonds between carbon atoms in thestructure
Answer:
\(D\)Explanation:
Here, we want to select the most important information piece to determine saturation
The best way to check for this is to check the kind of bonds between the carbon atoms in the molecule
When there are double or triple covalent bonds between the carbon atoms, then, we can be sure that there is a degree of unsaturation (alkenes, alkynes)
If we have single bonds only, then the molecule is saturated
explain faraday's law
Explanation:
Faraday's Law of Induction describes how an electric current produces a magnetic field and, conversely, how a changing magnetic field generates an electric current in a conductor. ... Magnetic induction makes possible the electric motors, generators and transformers that form the foundation of modern technology.
How many ounces are in 159kg? (16oz = 1lb) (1kg = 2.2lb)
Answer:
5,596.8
Explanation:
159×2.2= 349.8×16= 5,596.8
Long chain and very long chain FA require ____________ to enter the mitochondrial matrix for beta-oxidation
Long chain and very long chain fatty acids (FA) require carnitine shuttle system to enter the mitochondrial matrix for beta-oxidation.
This system consists of three primary components: carnitine palmitoyltransferase I (CPT I), carnitine-acylcarnitine translocase (CACT), and carnitine palmitoyltransferase II (CPT II). CPT I, located on the outer mitochondrial membrane, converts the long-chain FA into their respective acylcarnitines by attaching a carnitine molecule to them. These acylcarnitines can then be transported across the inner mitochondrial membrane by CACT, which is a transport protein. Once inside the matrix, CPT II, which is bound to the inner mitochondrial membrane, detaches the carnitine group and reattaches the original CoA group, generating a long-chain acyl-CoA that is ready for beta-oxidation.
Beta-oxidation is a process that breaks down fatty acids into smaller units called acetyl-CoA, which can then enter the citric acid cycle (also known as the Krebs cycle or TCA cycle) to generate ATP, the energy currency of cells. This process is vital for energy production, especially during times of fasting or prolonged exercise when glucose stores are depleted. Overall, the carnitine shuttle system is essential for the efficient transport and utilization of long chain and very long chain fatty acids for energy production through beta-oxidation.
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In lab, you calculate the density of an iron rod to be 7.30 g/cm3. The accepted value
for the density of iron is 7.80 g/cm3. What is your percent error?
Answer:
6.41 %Explanation:
The percentage error of a certain measurement can be found by using the formula
\(P(\%) = \frac{error}{actual \: \: number} \times 100\% \\ \)
From the question
actual density = 7.80 g/cm³
error = 7.30 - 7.80 = 0.5
We have
\(p(\%) = \frac{0.5}{7.8} \times 100 \\ = 6.410256...\)
We have the final answer as
6.41 %Hope this helps you
Which characteristic is a behavior adaptation in birds?
of course migration
Explanation:
if you need help again i'll be there.
Answer:
yea its migration
Explanation: