Question

What is the mass in grams of 4.85 x 10^22 Al atoms? (Report your answer to two places past the decimal

Answer 1

2.17 gm Al

Step-by-step explanation:

First, find the number of moles . Then multiply by the mole weight of aluminum.

# moles = 4.85 x 10^22 / 6.022 x 10^23 = .08053 moles

.0805 moles * 26.981 gm/mole = 2.173 gm