Calculate the molality of 20%by mass solution of k2CO3
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Answered by
34
mass of solute= 20gm
mass of solution =100gm=0.1ltr
molar mass of K2Co3 =39*2+12+48=138
moles of solute= 20/138
molarity = moles of solute *1000/volume of solution in litre
= (20/138)/0.1
= 1.44M
mass of solution =100gm=0.1ltr
molar mass of K2Co3 =39*2+12+48=138
moles of solute= 20/138
molarity = moles of solute *1000/volume of solution in litre
= (20/138)/0.1
= 1.44M
Answered by
17
The answer is 1.81 mol....
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