Question

calculate the number of moles in 60 grams urea​

Answer 1

Explanation:

Molecular formula of urea CON

2

H

2

Molar mass of urea = 60gmol

−1

Number of moles of urea = n=

M

W

=

60

5.6

=0.09333mol

Now,

∴ 1 mol urea contains 4 gram atoms of hydrogen(H)

∴ 0.09333mol urea contains==4×0.09333=0.3733 gram atom of H.

Now,

1gm atom of H contains =6.022×10

23

atoms of H.

0.3733gram atom of hydrogen contains = 6.022×10

23

×0.3733=2.248×10

23

Conclusion: Number of H atoms = 2.248×10

23

Answer 2

Explanation:

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calculate the number of moles in 60 grams urea?

$\huge\underline\color{Green}{ᴀɴsᴡᴇʀ}$

Number of mole =6/60

= 1/10

=0.1 moles