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11-01-2015
Chemistry

Answered

The label on a tub of margarine states that 100 g of the margarine contains 0·70 g of sodium. The sodium is present as sodium chloride. Calculate the mass of sodium chloride, in grams, present in a 10 g portion of the margarine. The mass of one mole of sodium chloride, NaCl, is 58·5 g.

Answer :

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11-01-2015

10 g margarine x (70g NaCl/100 g margarine)= 7 g NaCl

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