How much salt and water is needed to prepare 400g of a 30% solution.

univerkov | December 21, 2020 | education

Let’s calculate the mass of salt:
m (salt) = 400 g * 30% / 100% = 120 g
Now, to find the required mass of water, you need to subtract the mass of salt from the mass of the solution:
m (water) = 400-120 = 280 g

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