Question

a solution contains 40 gram of common salt in 320 gram of water calculate the concentration in tem of mass by mass percentage of solution ​

Answer 1

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Answer 2

Answer:

Mass (the solute) = 40 gram

Mass (the solvent) = 320 gram

Mass (solution) = Mass (solute) + Mass (solvent)

                        = 40 gram + 320 gram

                        = 360 gram

Therefore,Mass % (solution) = [ Mass (solute)/Mass (solvent)] × 100

                                = [40/360] × 100

                                = 11.1 %