Question

One gram of water contains about 3.34 times 10^22 molecules. About how many molecules are contained in 5.0 times 10^2 grams of water?

Answer 1

The answer is 1.67 x 10^25. Your welcome.

Answer 2

Just multiply the two numbers:

(3.34 * 10^22) * (5.0 * 10^2) = 16.7 * 10^24 = 1.67 * 10^25