Scientist A dissolved 1.0 kilogram of salt in 3.0 liters of water. Scientist B dissolved 3.0 pounds of salt in 8.0 pints of water. Which scientist made a more concentrated salt solutionanswer.

Answer 1

Scientist A solution concentration is 1/3 Kg/liter = 0.33 Kg/liter (rounded to second decimal place)

Scientist B solution has 3 pounds salt = 3/2.20462 Kg = 1.36078 Kg [ as we know 1 Kg = 2.20462 pound]

and it has 8 pints of water = 8/2.11338 litre = 3.78541 liter [ as we know 1 litre = 2.11338 pints]

So Scientist B solution concentration is 1.36078 / 3.78541 Kg/liter (rounded to second decimal place)

So Scientist B made more concentrated salt solution as (0.33 < 0.36)

Answer 2

1 kg = 2.23 lbs

3 liters is about 3 quarts because a liter and a quart is ABOUT the same.

Exactly, 1 liter = 1.05669 quarts

3 liters = 3.17007 quarts

1 quart = 2 pints ---> 3 liters = 3.17007 quarts = 6.34014 pints

Scientist A: 2.23 / 6.34014 = 35.172724892510260025803846602756...%

Scientist B: 3/8 = 37.5%