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zimovet [89]
4 years ago
9

How many grams are in 0.25 mol of NO2

Chemistry
2 answers:
Anarel [89]4 years ago
7 0
1 mol of atoms contains Avogadro's number of atoms. Avogadro's number =6.022140857(74)×10^23

So there are
1
4

×

N
A
nitrogen atoms in such a molar quantity of nitric oxide, approx.
1.5
×
10
23
individual nitrogen atoms. How many OXYGEN atoms in such a quantity?
Here I use
N
A
as I would use any other collective number: a dozen, a score, a gross. I am perfectly free to do so, because any physical scientist knows precisely what I mean by a
mole
.

HACTEHA [7]4 years ago
4 0

Answer: 11.5g

Explanation:

you need to find the molar mass of NO2 first

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