One Mole of a Substance Contains 6

question 46

Multiple Choice

One mole of a substance contains 6.02 x 10²³ molecules.The atomic number of Li is 3 and the atomic mass is approximately 7.If you have three moles of Li, how many grams does it weigh?

• A)9
• B)21
• C)7 x 6.02 x 10²³
• D)3 x 6.02 x 10²³

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Definitions:

Mid-Ocean Ridge

An underwater mountain range, formed by plate tectonics, where new oceanic crust is created through volcanic activity.

Seafloor Spreading

A geologic process where new oceanic crust is formed at mid-ocean ridges and slowly moves away from the ridge, contributing to continental drift.

Subduction

The process by which one tectonic plate moves under another, sinking into the Earth's mantle.

South Atlantic

The portion of the Atlantic Ocean lying between the eastern coasts of South America and the western coasts of Africa.