Molecular weight is expressed in which units?

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Multiple Choice

Molecular weight is expressed in which units?

Explanation:
Molecular weight tells you how heavy a mole of a substance is. Since it relates mass to the amount of substance (one mole), the unit is grams per mole. This allows you to convert between the mass you weigh and the number of particles or formula units you have. Grams per liter would indicate density or concentration, not the weight of a mole. Kilograms per mole is a valid alternative in some contexts, but grams per mole is the standard unit used in most chemistry settings. Moles per liter describes concentration (molarity), again not molecular weight.

Molecular weight tells you how heavy a mole of a substance is. Since it relates mass to the amount of substance (one mole), the unit is grams per mole. This allows you to convert between the mass you weigh and the number of particles or formula units you have. Grams per liter would indicate density or concentration, not the weight of a mole. Kilograms per mole is a valid alternative in some contexts, but grams per mole is the standard unit used in most chemistry settings. Moles per liter describes concentration (molarity), again not molecular weight.

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