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mole worksheet with solutions, basic chemistry numerical answer key
Typology: Exercises
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Answer the following questions:
How many moles are in 25.0 grams of water?
How many grams are in 4.500 moles of Li 2 O?
How many molecules are in 23.0 moles of oxygen?
How many moles are in 3.4 x 10^23 molecules of H 2 SO 4?
How many molecules are in 25.0 grams of NH 3?
How many grams are in 8.200 x 10^22 molecules of N 2 I 6?
Answer the following questions:
How many moles are in 25.0 grams of water? 1.39 moles 1 mole H 2 O = 18.0 g H 2 O 25 g H 2 O 1 mol H 2 O 18.0 g H 2 O
How many grams are in 4.500 moles of Li 2 O? 134.6 grams 1 mole Li 2 O = 29.90 g Li 2 O 4.500 mol Li 2 O 29.90 g Li 2 O 1 mol Li 2 O
How many molecules are in 23.0 moles of oxygen? 1.38 x 10^25 molecules 1 mole oxygen molecules = 6.02 x 10^23 oxygen molecules 23.0 mol O 2 6.02 x 10^23 O 2 molecules 1 mol O 2
How many moles are in 3.4 x 10^23 molecules of H 2 SO 4? 0.56 moles 1 mole anything = 6.02 x 10^23 anything 3.4 x 10^23 molecules H 2 SO 4 1 mol H 2 SO 4 6.02 x 10^23 molecules H 2 SO 4
= 1.39 mol H 2 O
= 134.6 g Li 2 O
= 0.56 mol H 2 SO 4
= 1.38 x 10^25 O 2 molecules
