A solution contains 35 g of sugar and 15 g of sodium chloride salt in 450 mL of water. Calculate
the mass per cent of
(a) sugar (b) sodium chloride salt (density of water = 1 g /mL).
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Answer:
The Mass Percent of
(a) sugar = 7%
(b) sodium chloride salt = 3%
Explanation:
Total Mass of a Solution = mass Of water + mass of NaCl + mass of Sugar
= 450g + 35g + 15g
= 500g
(a) Mass Percent Of Sugar = Mass of sugar/Total Mass Of solution ×100%
= 35/500 × 100%
= 7%
(b) Mass Percent of Nacl = Mass of Nacl/Total Mass of Solution × 100%
= 15/500 × 100%
= 3%
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