If a student's unknown is a white solid and its density was calculated to be about 1.7 g/ml, it is most likely a. water b. phosphoric acid c. sodium hydroxide

The answer to your question is letter B. Phosphoric acid

Explanation:

A. water is not the right answer because it has a density of 1 g/ml and water is a liquid not a solid.

B. phosphoric acid is the right answer because phosphoric acid is a solid and all solids have a density higher than water (1 g/ml)

C. sodium hydroxide could be the correct answer but it is not because the crystals of sodium hydroxide are more colorless than white.

answer; protein;

law of conservation of matter