The Mole Concept Review

What is the molecular weight of NaOH?
40.1g
44.2g
39g
40g
How many moles are in 9.8g of calcium?
0.254 moles
0.256 moles
0.25 moles
0.25
How many molecules are in 0.400 moles of dinotrigen pentoxide?
How many total particles are in 1.00g of NaCl?
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