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Sergio [31]
3 years ago
7

How many moles is 8.34 x 1022 molecules of NH3

Chemistry
2 answers:
klasskru [66]3 years ago
5 0
4928 would be the moles
poizon [28]3 years ago
3 0
The molecules is 4928
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Calculate the molecules in 9.78 moles of oxygen gas
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A local community needs to provide more electricity for its growing population. Currently, the community's electricity needs are met by coal-burning power plants several kilometres away. Citizens are concerned that burning more coal will produce too much air pollution.

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How many atoms are found in 3.45g of CO2?
USPshnik [31]

<u>Answer:</u> The number of carbon and oxygen atoms in the given amount of carbon dioxide is 4.72\times 10^{22} and 9.44\times 10^{22} respectively

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass of carbon dioxide gas = 3.45 g

Molar mass of carbon dioxide gas = 44 g/mol

Putting values in above equation, we get:

\text{Moles of carbon dioxide gas}=\frac{3.45g}{44g/mol}=0.0784mol

1 mole of carbon dioxide gas contains 1 mole of carbon and 2 moles of oxygen atoms.

According to mole concept:

1 mole of a compound contains 6.022\time 10^{23} number of molecules

So, 0.0784 moles of carbon dioxide gas will contain 1\times 0.0784\times 6.022\times 10^{23}=4.72\times 10^{22} number of carbon atoms and 2\times 0.0784\times 6.022\times 10^{23}=9.44\times 10^{22} number of oxygen atoms

Hence, the number of carbon and oxygen atoms in the given amount of carbon dioxide is 4.72\times 10^{22} and 9.44\times 10^{22} respectively

3 0
3 years ago
If you change the state of something, say, liquid to solid, is it a physical or chemical change?
Georgia [21]
I believe that it is a chemical change.
4 0
3 years ago
Read 2 more answers
How much does one mole of NH3 weigh?
Leokris [45]
17.031 g/mol Hope this helps you
6 0
2 years ago
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