Question

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Chemistry 111 2019 Edition 1. If you used no antacid tablet in your titration, you would be titrating 25.00 ml of 0.500 M HCl with 0.100 M NaOH. What volume of NaOH solution would be required to reach neutralization in this case? Since you are using an antacid tablet, will the titration require more or less NaOH solution than the amount determined in the experiment?

Answer 1

Ans)

You can solve for the concentration or volume of the concentrated or dilute solution using the equation: M1V1 = M2V2.

M1 and V1 are Molarity and Volume of liquid 1 and M2 and V2 are Molarity and Volume of liquid 2.

here Liquid 1 is HCL:

M1= 0.500 M

V1= 25.00 ml

and Liquid 2 is NaOH:

M2=0.100 M

V2= ?

Using the equation M1V1 = M2V2  to calculate V2:

So, 0.500 * 25 = 0.100 * V2

V2= (25*0.500)/0.100

V2= 125 ml.

So Volume of NaOH solution required to reach neutralization in this case is 125 ml.

An antacid is a substance which neutralizes stomach acidity and is used to relieve heartburn and indigestion. As it neutralizes acidity, it is basic in nature

Now since we know that HCL is an acid and NaOH is a base,

if we use antacid tablet, we will require less NaOH Solution than the amount determined in the experiment(125 ml)

This is because antacid is basic in nature and we will require less NaOH solution to reach neutralization.