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7.
In a solution of common salt in water, the ratio of salt to water was 30:70
as per weight. If we evaporate 100 grams of water from one kilogram of
this solution, what will be the ratio of the salt to water by weight?
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Step-by-step explanation:
Answer. so in ikg solution salt=300g and water =700g. now 100g water is evaporated so net water =600g so the ratio would be 300:600=1:2.
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