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2 years ago

Why should the mole to mole ratio be a whole number ratio?

1 answer:

muminat2 years ago

7 0

Answer: The mole to mole ratio are the stoichiometric factors of the chemicals in your balanced reactions and are always in whole numbers. When we balance a chemical reaction, whole numbers are always used for easy convention.

Explanation:

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Calculate the pH of a solution that is 0.235M benzoic acid and 0.130M sodium benzoate, a salt whose anion is the conjugate base

lesantik [10]

Hello!

We have the following data:

ps: we apply Ka in benzoic acid to the solution.

[acid] = 0.235 M (mol/L)

[salt] = 0.130 M (mol/L)

pKa (acetic acid buffer) =?

pH of a buffer =?

Let us first find pKa of benzoic acid, knowing that Ka (benzoic acid) = $6.20*10^{-5}$

So:

$pKa = - log\:(Ka)$

$pKa = - log\:(6.20*10^{-5})$

$pKa = 5 - log\:6.20$

$pKa = 5 - 0.79$

$\boxed{pKa = 4.21}$

Now, using the abovementioned data for the pH formula of a buffer solution or (Henderson-Hasselbalch equation), we have:

$pH = pKa + log\:\dfrac{[salt]}{[acid]}$

$pH = 4.21 + log\:\dfrac{0.130}{0.235}$

$pH = 4.21 + log\:0.55$

$pH = 4.21 + (-0.26)$

$pH = 4.21 - 0.26$

$\boxed{\boxed{pH = 3.95}}\end{array}}\qquad\checkmark$

Note:. The pH <7, then we have an acidic solution.

I Hope this helps, greetings ... DexteR! =)

8 0

2 years ago

What mass of aluminum has a total nuclear charge of 1.6 CC? Aluminum has atomic number 13. Suppose the aluminum is all of the is

e-lub [12.9K]

Answer:

aluminium is all of isotope with 14 neutrons .

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2 years ago

Which conclusion can be made from Gay-Lussac's law? (1 point)

MrRa [10]

The answer to the question Which conclusion can be made from Gay-Lussac's law is For a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin

Gay-Lussac's law shows the relationship between the pressure of a fixed mass of gas and its temperature in Kelvin.

It states that for a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin.

Mathematically, P ∝ T

P = kT

$\frac{P}{T} = k$

$\frac{P_{1} }{T_{1} } = \frac{P_{2} }{T_{2} }$

So, the answer to the question Which conclusion can be made from Gay-Lussac's law is For a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin

Learn more about Gay Lussac's law here:

brainly.com/question/24002551

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2 years ago

H2F5BLi How many atoms are in the chemical formula?

makvit [3.9K]

Answer:

eight atoms

hope it helps

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2 years ago

Which statement is true of any chemical reaction?

klemol [59]

According to the Law of Conservation of Mass,

The mass of the products in a chemical reaction must equal the mass of the reactants.

∴ D is the Answer

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3 years ago

Why should the mole to mole ratio be a whole number ratio?​

Why should the mole to mole ratio be a whole number ratio?