Question

How will we make 1 molar hcl solution from 35 stock solution?

Answer 1

Answer:

To make 1 L of 1 mol/L HCl, you take 88 mL of the concentrated solution and add water to make a total of 1 L.

Explanation:

Assume that you want to prepare 1 L of 1 mol/L HCl.

Step 1. Calculate the moles of HCl needed.

Moles of HCl

=

1

L HCl

×

1 mol HCl

1

L HCl

=

1 mol HCl

Step 2. Calculate the mass of HCl Needed.

Mass of HCl

=

1

mol HCl

×

36.46 g HCl

1

mol HCl

=

36.46 g HCl

Step 3. Calculate the mass of solution required.

Mass of soln

=

36.46

g HCl

×

100 g soln

35

g HCl

=

104.2 g soln

Step 4. Calculate the volume of solution required.

Volume of soln

=

104.2

g soln

×

1 mL soln

1.18

g soln

=

88 mL soln