Question:

20. How would you prepare a solution of salt and water if the required concentration is by mass?

Answer:

Therefore,

mass of solvent = mas of solution - mas of solute

100 g solution - 20g NaCI = 80 g of water

So the ratios: 20 g NaCI

80 g water

and

80 g water

20 g NaCI

are the conversation factors you can use to convert between mass of solute and mass of solvent.

From the question above, we will use the racio

20 g NaCI/80 g water.

Hope it Helps

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Answer:

20.C ist C bro or im wrong