3 years ago

Which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen?

Chemistry

1 answer:

Helga [31]3 years ago

8 0

Answer:

carbon

Explanation:

tbh im not sure just guessing

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3 years ago

What is the volume of a gas if 0.182 moles of the gas is at 1.99 atm and 83.4oC?

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2,67 L

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2 years ago

Mercury’s natural state is where the atoms are close to each other but are still free to pass by each other. In which state(s) c

kvv77 [185]

Mercury naturally exists in Liquid state.

On Condensing it can exist in Solid state as well.

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3 years ago

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3 years ago

A buffer solution is composed of 1.00 mol of acid and 2.25 mol of the conjugate base. If the p K a of the acid is 4.90 , what is

Gemiola [76]

<u>Answer:</u> The pH of the buffer is 5.25

<u>Explanation:</u>

Let the volume of buffer solution be V

We know that:

$\text{Molarity}=\frac{\text{Moles of solute}}{\text{Volume of solution}}$

To calculate the pH of acidic buffer, we use the equation given by Henderson Hasselbalch:

$pH=pK_a+\log(\frac{[\text{conjugate base}]}{[acid]})$

We are given:

$pK_a$ = negative logarithm of acid dissociation constant of weak acid = 4.90

$[\text{conjugate base}]=\frac{2.25}{V}$

$[acid]=\frac{1.00}{V}$

pH = ?

Putting values in above equation, we get:

$pH=4.90+\log(\frac{2.25/V}{1.00/V})\\\\pH=5.25$

Hence, the pH of the buffer is 5.25

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3 years ago