Suppose you dissolve 1 gram of solid glucose crystals in 1 kg of water to make a solution. Which calculation would be best to describe the concentration of glucose?

"mass/mass percent" calculation to express the concentration of glucose.

Explanation:

Concentration of the solution is generally a ratio between the amount of solute and the amount of solvent (or solution).  In this case, the amount of solute is measured in grams, and the amount of solvent (water) is measured in kilograms.  Both units are units of mass.  It would be most likely to use by mass/mass percent.

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