Question

What size volumetric flask would you use to create a 1.00M solution using 166.00 g of KI?

Answer 1

A 1 liter volumetric flask should be used.

Step-by-step explanation:

First we convert 166.00 g of KI into moles, using its molar mass:

Molar mass of KI = Molar mass of K + Molar mass of I = 166 g/mol

• 166.00 g ÷ 166 g/mol = 1 mol KI

Then we calculate the required volume, using the definition of molarity:

• Molarity = moles / liters

Liters = moles / molarity

• 1 mol / 1.00 M = 1 L