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Mice21 [21]
3 years ago
9

Use the equation 2cu+o2=2cuo to find how many miles of copper react to form 3.64 mil cuo

Chemistry
2 answers:
Firlakuza [10]3 years ago
8 0
<h3><u>Answer;</u></h3>

3.64 moles

<h3><u>Explanation;</u></h3>

From the equation;

2Cu + O2 → 2CuO

Mole ratio of Cu : CuO = 2: 2 equivalent to 1: 1

Moles of CuO = 3.64 Moles

Therefore;

moles of Cu will be ;

3.64 × 1 = 3.64 moles

Moles of Cu = <u>3.64 moles </u>

vaieri [72.5K]3 years ago
3 0

Complete question:

Use the equation 2Cu+O2 →2CuO, to find how many grams of copper react to produce 3.64 mol CuO.

Answer:

grams of Cu = 231.14  grams

If it is the number of moles

since both Cu and CuO exist in the reaction as 2 mole each ,That means 3.64 moles of CuO will need 3.64 moles of Cu to react.  

Explanation:

Write and balance the equation of the reactions

2Cu+O2 →2CuO

The equation is balanced

Atomic mass of cu = 63.5 g/mol

mass of 2Cu in the reaction = 127  grams

Molar mass of Cuo = 63.5 + 16 = 79.5

The mass of 2Cuo in the reaction = 2 × 79.5  = 159   grams

number of moles = mass/molar mass

we need to convert 3.64 moles to mass(grams)

3.64 = mass/79.5

mass = 3.64 × 79.5

mass of copper oxide = 289.38

grams

Since 127 grams of copper give 159 grams of Cuo

      ? grams of copper will give 289.38  grams of Cuo

cross multiply

grams of Cu = 289.38  × 127/159

grams of Cu = 36751.26

/159

grams of Cu = 231.14  grams

If it is the number of moles

since both Cu and CuO exist in the reaction as 2 mole each ,That means 3.64 moles of CuO will need 3.64 moles of Cu to react.  

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Answer:

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Explanation:

Hello,

In this case, based on the given, we can infer that as titanium is hot and water cold, it cools down whereas the water is heated up, therefore, in terms of heat, we have that the heat lost by the titanium is gained by the water:

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Regards.

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