All of water in a 0.20M solution of NaCL evaporated and 0.15 mol of NaCl was obtained. What was the original volume of the sample?
a)30ml
B)333ml
c)444ml
d) 750ml

Question

All of water in a 0.20M solution of NaCL evaporated and 0.15 mol of NaCl was obtained. What was the original volume of the sample? a)30ml B)333ml c)444ml d) 750ml

NETTEM SAI SIRISHA · Answer

molarity= no.of moles of solute/volume of the solution in litres.

given that:molarity=0.20 ,no.of moles of solute =0.15.

so, 0.20=0.15/volume of the solution.

volume=0.15/0.20=0.75 lt.

so volume=750ml.

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All of water in a 0.20M solution of NaCL evaporated and 0.15 mol of NaCl was obtained. What was the original volume of the sample? a)30ml B)333ml c)444ml d) 750ml

All of water in a 0.20M solution of NaCL evaporated and 0.15 mol of NaCl was obtained. What was the original volume of the sample?
a)30ml
B)333ml
c)444ml
d) 750ml

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