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Problem 82 Hard Difficulty

How much heat is produced when 1.25 $\mathrm{g}$ of chromium metal reacts with oxygen gas under standard conditions?

Answer

It's produced 13700 $\mathrm{J}$ of energy.

More Answers

01:45

Aadit S.

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Video Transcript

Schedule that he produced 1 1.25 g of chromium react with oxygen. Understanding conditions will start with a balanced equation here we have chromium solid reaction with oxygen gas. This will produce chromium oxide to balance for three and two About the H not for this reaction here is for the combustion and chromium is minus one 1000 139.7 killer jewels promote. So we have 1.25 g of chromium will convert this to moles cronyism molar mass of 52 g per mole. This works out to point 0 to 4 zero moles of chromium. Therefore he produced yeah, be equal to .0-40 moles times -11, 3 97. Hello Jules Per Mole. This would be divided by four. Yeah, the for coming from the balanced equation there and this would give us 6.65. Okay, Kill the jewels of energy that would be released.

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Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson

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