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m = 24
edexcel.com n xtremepapers.com
0.9% of 54: = 0.9% x 54 = 0.009 x 54 = o.486
1. there are five layers of the atmosphere 2. it is composed of the gas nitrogen (N) and oxygen (O) mainly 3. nitrogen (N) occupies 78% of the atmosphere 4. oxugen (O) occupies 21% of the atmosohere
how can you find out the levels of cash f n o
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The most important elements in the Earth's atmosphere are N (nitrogen) and O (oxygen).
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The molar mass of nitrogen (N) is 14 g/mol, and of oxygen (O) is 16 g/mol. Calculate the number of moles of each element. The ratio of the moles of N to O is 3:1. Therefore, the percent composition of the compound is approximately 75% N and 25% O.
N-O-P-D- - 1956 The Teen-Age 13 Percent 1-33 was released on: USA: 1956
Oxygen is O and nitrogen is N.
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373.01% c, 2.22% h, 18.50% n, 42.26% o
m = 24