How many grams of NaCl are needed to prepare 60 g of a 6.0% solution?

Chemistry

1 answer:

AlekseyPX2 years ago

3 0

Answer:

3.6 grams of NaCl are needed

Explanation:

Percent solution are solutions whose concentrations are expressed in percentages. The amount(either weight or volume) of a solute is expressed as a percentage of the total weight or volume of solution. Percent solutions can either be expressed as weight/volume % (wt/vol % or w/v %), weight/weight % (wt/wt % or w/w %), or volume/volume % (vol/vol % or v/v %).

A 6.0% wt/wt % solution contains 6 g of solute in 100 g of solution

Therefore, a 100 g solution contains 6.0 g of solute.

60 g of 6.0% solution will contain 60 g solution * 6.0 g solute/ 100 g solution

Mass of NaCl present = 3.6 g of NaCl

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