nsmiles9809 nsmiles9809

17-05-2018
Chemistry

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Find the molarity of 750 ml solution containing 346 g of potassium nitrate

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asadullahgiki asadullahgiki

25-05-2018

Given mass of KNO₃=346g
Molar mass of KNO₃=(39.098)+(14)+(15.99*3)=101.068gmol⁻¹
Volume of Solution=750ml=0.75dm³

Molarity=(mass of solute/molar mass of solute)*(1/volume of sol. in dm³)
=(346/101.068)*(1/0.75)
=4.56 mol dm⁻³

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