Question

A 2M glucose (molecular weight = 180g) contains ____________ grams of glucose per liter.

A. 90
B. 180
C. 6.02 × 1023
D. 360

Answer 1

A 2M glucose solution with a molecular weight of 180g contains 360 grams of glucose per liter. This is calculated by multiplying the molarity (2M) by the molecular weight of glucose (180 g/mol).

Step-by-step explanation:

To determine the amount of glucose in grams per liter of a 2M glucose solution, with a molecular weight of 180g, you simply multiply the concentration in moles per liter (molarity) by the molecular weight of glucose.

The calculation is as follows:

1. Identify the molarity of the solution: 2M.
2. Identify the molecular weight of glucose: 180 grams/mole.
3. Multiply the molarity by the molecular weight to find the grams of glucose per liter: 2 moles/L × 180 grams/mole = 360 grams/L.

Therefore, a 2M glucose solution contains 360 grams of glucose per liter.