Stereoisomers

Step 1: Write the neutralization equation. The neutralization reaction between

%5Ctext%7BNaOH%7D

and

%5Ctext%7BHCl%7D

is:

%5Ctext%7BNaOH%7D%20%2B%20%5Ctext%7BHCl%7D%20%5Crightarrow%20%5Ctext%7BNaCl%7D%20%2B%20%5Ctext%7BH%7D_2%5Ctext%7BO%7D

From the equation, we see that

1%20%5C%2C%20%5Ctext%7Bmol%7D

%5Ctext%7BNaOH%7D

neutralizes

1%20%5C%2C%20%5Ctext%7Bmol%7D

%5Ctext%7BHCl%7D

. Step 2: Use the formula for titration. The formula for titration is:

C_1%20V_1%20%3D%20C_2%20V_2

Where: -

C_1

and

V_1

are the concentration and volume of

%5Ctext%7BHCl%7D

, -

C_2

and

V_2

are the concentration and volume of

%5Ctext%7BNaOH%7D

. Substitute the known values:

(1%20%5C%2C%20%5Ctext%7BM%7D)%20%5Ctimes%20(50%20%5C%2C%20%5Ctext%7BmL%7D)%20%3D%20(0.5%20%5C%2C%20%5Ctext%7BM%7D)%20%5Ctimes%20V_2

50%20%3D%200.5%20%5Ctimes%20V_2

V_2%20%3D%20%5Cfrac%7B50%7D%7B0.5%7D%20%3D%20100%20%5C%2C%20%5Ctext%7BmL%7D

Step 3: Check the volume of $%5Ctext%7BNaOH%7D$ . We need to use half the volume of

100%20%5C%2C%20%5Ctext%7BmL%7D

, as the concentrations are different for both solutions. Therefore, the correct volume of

0.5%20%5C%2C%20%5Ctext%7BM%7D%20%5C%2C%20%5Ctext%7BNaOH%7D

is:

V_2%20%3D%2025%20%5C%2C%20%5Ctext%7BmL%7D

Answer: Therefore,

25%20%5C%2C%20%5Ctext%7BmL%7D

0.5%20%5C%2C%20%5Ctext%7BM%7D%20%5C%2C%20%5Ctext%7BNaOH%7D

is required to neutralize

50%20%5C%2C%20%5Ctext%7BmL%7D

1%20%5C%2C%20%5Ctext%7BM%7D%20%5C%2C%20%5Ctext%7BHCl%7D

Chapter Questions
2 MCQs