What mass of salt and mass of water should be taken to prepare 100 g of a 3% solution.

1. Let’s calculate the mass of salt in solution using the formula:

m (salt) = m (solution) * w (solution) / 100% = 100 g * 3% / 100% = 3 g.

2. We calculate the mass of water taken to dissolve the salt, using the formula:

m (water) = m (solution) – m (salt) = 100 – 3 = 97 g.



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