A solution contains 75 g of common salt in 640 g of water, Calculate the concentration in terms of mass by mass percentage of the solution.
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Concentration of solution = mass of solute /mass of solution ×100 = 75/640 ×100 =>so the answer is equal to 11.7%
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Answer:
mass of salt =75 gm
mass of water 640 gm
mass by mass %=(mass of salt/mass of water)100
=(75/640)100
=11.71% m/m
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