Which solution has the same number of moles of KCl...

Question

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

Jules Bruno · Accepted Answer

We are asked to which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KClRecall dilution equation: mol = MVCalculate mol for 75.00 mL of 0.250 M solution of KClmol KCl= MVmol KCl=(0.25 mol L)(75 mL)×10-3  L1 mL  = 0.0187 molCalculate mole for each option:[readmore]A) 20.0 mL of 0.200 M solution of KClmol KCl=(0.20 mol L)(20 mL)×10-3  L1 mL  = 4×10-3 molB) 25.0 mL of 0.175 M solution of KClmol KCl=(0.175 mol L)(25 mL)×10-3  L1 mL  = 4.375×10-3 molC) 129 mL of 0.145 M solution of KClmol KCl=(0.145 mol L)(129 mL)×10-3  L1 mL  = 0.0187 molD) 50.0 mL of 0.125 M solution of KClmol KCl=(0.125 mol L)(50 mL)×10-3  L1 mL  = 6.25×10-3 molE) 100 mL of 0.0500 M solution of KClmol KCl=(0.05 mol L)(100 mL)×10-3  L1 mL  = 5×10-3 molThe solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl is C) 129 mL of 0.145 M solution of KCl

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

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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

Problem Details

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