How much hcl must be added to a liter of buffer that is 1. 5 m in acetic acid and 0. 70 m in sodium acetate to result in a buffe

Question

nalin [4]

2 years ago

13

How much hcl must be added to a liter of buffer that is 1. 5 m in acetic acid and 0. 70 m in sodium acetate to result in a buffe

r ph of 4. 01?]

Chemistry

1 answer:

yaroslaw [1] · Answer 1 · 2023-02-24T21:51:17+03:00

For a liter of a buffer that is 1. 5 m in acetic acid and 0. 70 m in sodium acetate, and with a result in a buffer pH of 4.01, the moles of HCl required is mathematically given as x=0.313mol

<h3>What is the result in a buffer ph of 4. 01?</h3>

Generally, the equation for the pH is mathematically given as

pH=pKa+logsalt/acid

Generally, the equation for the Chemical Reaction is mathematically given as

HCl+CH3CooNa---->NaCl+CH3OOH

Therefore

4.01=4.74+log\frac{0.8-x}{1.3+x}

-0.52=log\frac{0.8-x}{1.3+x}

x=0.313mol

In conclusion, The moles of HCl required is

x=0.313mol