Question

Extended Activities
b.
a.
C.
e.
How many grams of carbon and oxygen are required to get the same
number of atoms as in one gram of Helium?
Examine the samples given.
20 g He
44.8 L of NH, at STP
67.2 L N, at STP
d.
1 mol of H,SO
180 g of water
i) Arrange the samples in the increasing order of the number of
molecules in each.
ii) What will be the ascending order of the number of atoms?
iii) What will be the mass of samples b, c, and d?
In 90 gram of water
a) How many molecules are present in it?
b) What will be the total number of atoms?
What will be the total number of electrons in this sample?
f

Answer 1

Answer:

1 g He→41 mol He

No. of atoms αn of mols

∴ equal it mole equal 

1 mol C weighs →12 g

41 mol C weighs  →3 g

1 mol O→36 g

41 mol O→4 g

Explanation:

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