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mars1129 [50]
3 years ago
6

Please help 100 point s

Chemistry
2 answers:
ki77a [65]3 years ago
5 0
Where is the chart?????
Anni [7]3 years ago
5 0

air is NOT a compound - it is a mixture of different gases like O2, N2 n CO2. CO2 is a pure substance but NOT an element. so the CORRECT ans is


C) The chart shows the percentages of pure substances in a mixture.


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Molar mass (NH4)2SO4
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Answer:

<u>132.15</u>

Explanation:

Molar mass N = 14.00

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Molar mass H4 = 1.01 x 4 = 4.04

Molar mass NH4 = 14.00 + 4.04 = 18.04

Molar mass (NH4)2 = 18.04 x 2 = 36.08

Molar mass S = 32.07

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Molar mass O4 = 16.00 x 4 = 64.00

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Molar mass (NH4)2SO4 = 36.08 + 96.07 = <u>132.14</u>

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