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Gala2k [10]
2 years ago
13

4.515 x 10^24 atoms of purellium distinkamide is equal to ___ moles? 7.5 6.2 19.2

Chemistry
1 answer:
slamgirl [31]2 years ago
8 0

Answer:

Using dimensional analysis, we have....

4.515x1024 atoms x 1 mole/6.022x1023 atoms = 7.4975 moles = 7.498 moles of PD

So the official answer is 7.5

Explanation:

"Purellium Distinkamide" is a silly joke name for a made-up compound. The idea of this question is that no matter what the substance we are talking about is - water (H2O), hydrogen gas (H2), or even "Purellium Distinkamide" - a mole is always the same number of molecules, 6.022 x 1023. This is Avogadro's number and you have probably seen it around class a lot!

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Reactives -> Products

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I found this reaction which has CuO and water as products: decomposition of Cu(OH)2.

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Stoichiometry calculus involve the mole proportions you can see in the reaction: When 1 mole of Cu(OH)2 reacts, 1 mole of CuO and 1 mole of H2O are formed.

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You should use that numbers in the rule of three:

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x= 0.7535 g water




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