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vlabodo [156]
3 years ago
7

What would the total mass of a 4.9 mole sample of Barium (Ba) be if its Molar Mass is 137g?

Chemistry
1 answer:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

m = 671 grams

Explanation:

Given that,

No of moles, n = 4.9

Molar mass of Barium, M = 137 g

Mass divided by molar mass is equal to no of moles. It can be given by the formula as follows :

n=\dfrac{m}{M}\\\\m=n\times M\\\\m=4.9\times 137\\\\m=671.3\ g

or

m = 671 grams

So, the total mass of the sample of Barium is 671 grams.

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Make the equation equal on each side.

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The right has 1 Sn, 4 O, and 1 S.

So you have to balance the equation by putting numbers in front of the compounds.

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3 years ago
How many atoms of magnesium metal are needed to produce 3.87 moles of magnesium oxide
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Answer:

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Explanation:

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2 years ago
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How do the chemical properties of the halegons compare to those of the noble gases
saul85 [17]

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The halogens are extremely reactive, whilst the noble gases are mainly inert.

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Hope this helps :)

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3 years ago
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3 years ago
One difference between mixtures and pure substances is that
defon

Answer:

The mixture is made up of different atoms and pure substance is made up of same type of atom.

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