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Oxana [17]
3 years ago
8

Help with this question

Chemistry
1 answer:
fredd [130]3 years ago
6 0

Answer:

2.5 mole of O2

Explanation:

From the equation we see that we need 5 molecules of oxygen to react with 2 molecules of C2H2.

This means that 5 moles of oxygen molecules are needed to completely react with 2 moles of C2H2, because a mole is a unit of particle count.

From that we can infer that to react with 1 mole of C2H2 we need half of 5 moles of oxygen - so 2.5 mole of oxygen molecules.

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1.2molIrI3 * \frac{572.92g}{1mol} = 687.504 g IrI3

Round to the lowest number of significant figures which is 2 to get 690 g IrI₃.

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