3 years ago

Find the "density" of a copper sample whose mass is 134.4 grams and whose volume is 15.0mL

Chemistry

1 answer:

Sonja [21]3 years ago

3 0

Answer:

8.96 g/mL

Explanation:

density = mass / volume

density = 134.3g / 15.0 mL

density = 8.96 g/mL

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3 years ago

The combustion of ethane (C2H6)(C2H6) produces carbon dioxide and steam. 2C2H6(g)+7O2(g)⟶4CO2(g)+6H2O(g) 2C2H6(g)+7O2(g)⟶4CO2(g)

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11.9 moles of carbon-dioxide will produced.

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Given moles of ethane = 5.95 mol

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According to reaction 2 moles of ethane produces 4 moles of carbon-dioxide.

Then, 5.95 moles of ethane will produce:

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