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Citrus2011 [14]
3 years ago
10

The fictional element, marvellium has 4 isotopes with mass numbers of 21, 22,24, and 28 amu. Each isotope is found in equal amou

nts in nature. What number is closest to the average atomic mass of marvellium
Chemistry
1 answer:
natita [175]3 years ago
3 0

Answer:

The answer to that question is 24 AMU.

Explanation:

I know this because i got the answer correct on the quiz. To get the average, you just add the 4 atomic masses given to you together then divide by 4.

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Mass =  42.8g

Explanation:

4 NH 3 ( g ) + 5 O 2 ( g ) ⟶ 4 NO ( g ) + 6 H 2 O ( g )

Observe that every 4 mole of ammonia requires 5 moles of oxygen to obtain 4 moles of Nitrogen oxide and 6 moles of water.

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Step 2: Convert all given information into moles (through the use of molar mass as a conversion factor).

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Mass =  42.8g

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