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Ray Of Light [21]
3 years ago
9

How many moles are present in 45.0 g of lithium oxide (Li2O)?

Chemistry
1 answer:
BigorU [14]3 years ago
4 0
Molar mass Li2O = 7.0 x 2 + 16 => 30 g/mol

1 mole Li2O ---------- 30 g
( moles Li2O ) -------- 45.0 g

moles Li2O = 45.0 x 1 / 30

moles Li2O = 45.0 / 30

= 1.50 moles of Li2O 

hope this helps!


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Answer: acetone molecule ( CH₃-CO-CH₃)


Explanation:


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2) That is a molecule (build up of covalent bonds).


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3 0
3 years ago
What is the mass of 0.28 mole of iron?
vredina [299]

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Your answer should be 15.68 grams.

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6 0
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