CBSE Class 10 Answered
how much salt must be added to 60 kg of a 20%solution of salt to increase it to a 40% solution of salt
Asked by pv925403 | 06 Jan, 2024, 20:52: PM
Expert Answer
We consider that 20% salt solution means 20% of total mass of solution is mass of salt.
If initial total mass of solution is 60 kg , then mass of salt = 60 × ( 20/100) kg = 12 kg
Hence mass of solvent = ( 60-12) kg = 48 kg
if x kg of salt is added to make 40% salt solution , then we have
by solving above expression, we get x = 20 kg
Hence 20 kg of salt is to be added to convert the solution to 40% salt solution.
Answered by Thiyagarajan K | 06 Jan, 2024, 21:28: PM
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