Calculate the volume in milliliters of 1.57 M potassium hydroxide that contains 10.3 g of solute.

General Formulas and Concepts:

Chem

Reading a Periodic TableWriting compounds and polyatomic ionsMolarity = moles of solute / liters of solution

Explanation:

Step 1: Define

1.57 M KOH (potassium hydroxide)

10.3 g KOH

Step 2: Define conversions

Molar Mass of K - 39.10 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of KOH - 39.10 + 16.00 + 1.01 = 56.11 g/mol

Step 3: Convert

= 0.183568 mol KOH

Step 4: Solve for Volume

Substitute:                    Move x:                         Isolate x:                       Evaluate:                      

Step 5: Check

We are given 3 sig figs. Follow sig fig rules.

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