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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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