Question

How many moles of N are in 0.247 g of H2O?

? mol N

Answer #1

I think the question should be:

How many moles of N are in 0.247 gm of N_{2}O?

Here, N is Nitrogen which has an AMU (Atomic Mass Unit) = 14

O is Oxygen which has an AMU (Atomic Mass Unit) = 16

Also, each molecule of N_{2}O has 3 as the total number
of molecules

Thus, total atomic mass unit of N_{2}O = (2 x14) + 16 =
28 + 16 = 44 amu

Hence, 1 mol of N_{2}O = 44 gm

According to the question,

0.247 gm/44gm = 0.005613 mol of N_{2}O

Since, each molecule of N_{2}O comprises of 2 N,
therefore, we will multiply the above answer by 2

So, 0.005613 mol x 2 = 0.01122 mol of N

There are 0.01122 mol of N in 0.247 gm of N_{2}O.

If a plant produces 9.31 mol of C6H12O6, how many moles of H2O
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How many moles of H2O can be produced from 1.34 mol
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How many grams of NH3 will react with 43.4 g
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a. a MW of 101.96 g/mol. How many
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b. a MW of 101.96 g/mol. How many grams of
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c. a MM of 102 g/mol. How many
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d. What is the mass of oxygen in 204 g aluminum
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(b) What is the mass, in grams, of 0.0279 mol of iron(III)
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(c) What is the mass, in grams, of 4.98 1023 molecules of
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Question 1 .Solve all
a)How many moles of nitrogen, N, are in 90.0 g of nitrous oxide,
N2
c)Calculate the number of moles of magnesium, chlorine, and
oxygen atoms in 8.70 moles of magnesium perchlorate, Mg(ClO4)2.
d)A sample of propane, C3H8, contains 12.9 moles of carbon
atoms. How many total moles of atoms does the sample contain?
e)Caffeine is a bitter stimulant drug and is found in varying
quantities in seeds, leaves, and so on. Its formula is C8H10N4O2.
Match...

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CO2(g) + H2O(l)
How many moles of potassium carbonate will be produced if 487 g
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Assume that there is more than enough of the other reactant.
2Ca(s)+O2(g)→2CaO(s)
For the reaction, calculate how many moles of the product form
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Assume that there is more than enough of the other reactant.
4Fe(s)+3O2(g)→2Fe2O3(s)
For the reaction, calculate how many moles of the product form
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Assume that...

A 0.157−mol sample of a metal oxide,
M2O3
, weighs 23.5 g.
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(c) Which element is represented by the symbol M? (Give
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HF
Multiple Choice
1.08 mol
1.80 mol
0.450 mol
3.60 mol
0.900 mol

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