Question
Asked Oct 29, 2019
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How many grams of KNO3 (molar mass = 101.103 g/mol) should be used to make 125.0 mL of 0.030 M solution?

 

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Expert Answer

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Step 1

Given,

Molarity of the solution = 0.030M.

Volume of the solution = 125.0mL = 0.125L.

Step 2

The moles of KNO3 in the solution ...

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moles Molarity Volume (in L) moles -MolarityxVolume 0.030mol/Lx0.125 L 0.00375mol

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Tagged in

Science

Chemistry

Physical Chemistry