calculate the number of molecules in (i) 5.6 g of calcium oxide (ii) 1.5 mole of nitric acid
Answers
Answered by
0
Answer:
Correct option is C)
For a molecule,
molecular weight in grams = Avogadro's number(N
A
)=6.023×10
23
(A) 1g CO
2
44 gram of CO
2
=N
A
molecules
∴ 1 gram of CO
2
contains
44
1
×N
A
molecules
(B) 1g N
2
28 gram of N
2
=N
A
molecules
∴1 gram of N
2
contains
28
1
×N
A
molecules
(C) 1g H
2
2 gram of H
2
contains N
A
molecules
∴ 1 gram of H
2
contains
2
1
×N
A
molecules
(D) 1g CH
4
16 gram of CH
4
=N
A
molecules
∴ 1 gram of CH
4
=N
A
/16
Maximum number of molecules are found in 1 gram hydrogen.
Explanation:
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Answered by
0
Answer:
1) given weight =5.6g
calcium oxide molecular mass =56
no.of mole =given weight /molecular mass
=5.6/56=0.1 mole
in 0.1 mole= 0.1*6.02*10^23
similarly the next questions answer
Explanation:
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