To prepare a 10% solution, you need to take 5 grams of salt. Calculate the required mass of water.

To prepare a 10% solution from 5 g of salt, you need to take x g of water – this is the remaining 90%.
m (H2O) = 5 * 90/10 = 45 g.
To obtain a 10% solution, it is necessary to accurately weigh 5 g of salt and place it in a 50 ml volumetric flask. Dissolve the salt in a little water and only then bring up to the mark with water.



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