Grade 12th passPhysical Chemistry
Calculate the molarity of 30gr of co (No3)2.6H2o in 4.3L of solution
Calculate the molarity of 30gr of co (No3)2.6H2o in 4.3L of solution
1 Answer
Zehreen
As per definition molarity is the number of moles of solute present in per litre of solution,so here we first need to find the no.of moles of solute which can be calculated by the formula
No.of moles= weight(in grams)/molecular weight
n=30/290.93
n=0.1mol
Now we can find out molarity by the formula
Molarity=no.of moles of solute/volume of solution
M=0.1/4.3
M=0.02mol/ltr
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