If 3011 × 10²³ Molecules Have a Mass of 20

question 94

Multiple Choice

If 3.011 × 10²³ molecules have a mass of 20.04 grams,what is the molar mass of this substance?

• A)40.08 g/mol
• B)10.02 g/mol
• C)20.04 g/mol
• D)6.658 × 10^-23 g/mol
• E)none of the above

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Definitions:

Reactive Intermediate

A short-lived species formed during the course of a chemical reaction which cannot be isolated under normal conditions.

H+

The proton, often representing an acid in chemistry, capable of forming hydronium ions (H3O+) in solution.

Reactive Intermediate

Highly reactive species formed transiently in the course of a chemical reaction.

Hydroxide

A negatively charged ion (OH-) consisting of oxygen and hydrogen.