HOW MUCH 1 MOLE HCL IS REQUIRED TO MAKE 250ML OF 0.1 MOLE HCL?

Didn't I do this for you yesterday?

You want M x L = mols HCl = 0.1M x 0.250 L = ?
Then moles HCl = grams HCl/molar mass HCl.

To find out how much 1 mole of HCl is required to make 250 mL of 0.1 mole HCl, we need to use the concept of molarity and the formula:

Molarity = Moles of solute / Volume of solution (in liters)

Given:
Volume of solution = 250 mL = 0.25 L
Molarity = 0.1 mole/L

Rearranging the formula, we have:
Moles of solute = Molarity × Volume of solution

Substituting the given values, we get:
Moles of solute = 0.1 mole/L × 0.25 L

Calculating the result:
Moles of solute = 0.025 moles

Therefore, 0.025 moles of HCl are required to make 250 mL of 0.1 mole HCl.