Problem: Which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl?A) 20.0 mL of 0.200 M solution of KClB) 25.0 mL of 0.175 M solution of KClC) 129 mL of 0.145 M solution of KClD) 50.0 mL of 0.125 M solution of KClE) 100 mL of 0.0500 M solution of KCl

FREE Expert Solution

We are asked to which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl


Recall dilution equation: 

mol = MV



Calculate mol for 75.00 mL of 0.250 M solution of KCl


mol KCl= MVmol KCl=(0.25 mol L)(75 mL)×10-3  L1 mL  = 0.0187 mol


Calculate mole for each option:


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Problem Details

Which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl?

A) 20.0 mL of 0.200 M solution of KCl

B) 25.0 mL of 0.175 M solution of KCl

C) 129 mL of 0.145 M solution of KCl

D) 50.0 mL of 0.125 M solution of KCl

E) 100 mL of 0.0500 M solution of KCl