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garri49 [273]
2 years ago
12

Hey!!! Chemistry Question about MOLES... Please help...

Chemistry
2 answers:
Gnesinka [82]2 years ago
8 0

Answer:

48 moles of water

Explanation:

2C2H6 + 7O2 --> 4CO2 + 6H2O

We want to find the number of moles of water produced if 16 moles of ethane (C2H6) are burned.

We can use dimensional analysis to find the answer.

Needed conversions: We need the mole ratio of ethane to water in the chemical equation which would be 2 to 6. So for every 2 moles of ethane that are burned 6 moles of water is produced.

Using this ratio we can create a table:

\frac{16mol(C_2H_6)}{} *\frac{6mol(H_2O)}{2mol(C_2H_6)}

the mol (C2H6) cancel out and we get

\frac{16}{} *\frac{6}{2mol(C_2H_6)}

we then multiply

16 * 6/2molC2H6 = 48molH2O

So if 16 moles of ethane is burned 48 moles of water is produced

yulyashka [42]2 years ago
6 0

Answer:

= 13.0 moles O2

Explanation:

1] Given the equation: 2C8H18 + 25 O2 ----> 16CO2 + 18H2O

a. How many moles of oxygen gas are required to make 8.33 moles of carbon dioxide?

8.33 moles CO2 X

25mol O2

16mol CO2

= 13.0 moles O2

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Which of the following elements possesses an expanded octet?
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3 years ago
Does anyone know the answer to this chemistry question?!?
Pepsi [2]

Answer:

Mass of HCl = 73 g

Explanation:

Given data:

Mass of hydrogen = 2 g

Mass of HCl = ?

Solution:

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Number of moles of hydrogen = 1 mol

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Mass of HCl:

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Answer:

Quality Assurance

The first law of thermodynamics states that the change in the internal energy of a system equals the net heat transfer into the system minus the net work done by the system. This is another way of saying that energy can neither be created nor destroyed, but it can be converted from one form to another form.  

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