Find the mass of NaCl dissolved in 40% m/m solution in water.
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N=n/m ; Where, N= no of moles, n= number of grams of the substance and m= its molar mass; For example, if we want to calculate the number of moles of NaCl in a particular gram we simply need to figure out the molar mass of NaCl and the mass of the substance in grams.
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