consider the following thermochemical reaction
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a solution contains 40 g of common salt in 320 g of water. calculated the concentration in terms of mass by mass persantage of the solution.
Explanation:
mass of solute salt:40g
mass of solvent water:320g
we know,
mass of solution=mass of solvent+
mass of solute
=40g+320g
=360g.
mass persantage of solution
mass of solute
..................................multiply with 100
mass of solution
= 40
---------- multiply with 100=11.1%
360
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