Question

1 calculate the mass of the following
i,0.5 mole of N atoms
ii,3.011×10²³ number of N atoms
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Answer 1

Answer:

i)7gm

ii)7gm

Explanation:

i) no.of moles=given mass/molecular mass

0.5=mass/14

0.5*14=mass

.•. mass of N atoms--7gm

ii)6.022*10^23 -------14gm

3.011*10^23 ---------??

.°. 3.011*10^23 x 14/6.022*10^23=7

...Hence ans in both cases is 7gm.

Answer 2

Answer:

SHE IS LIKE MY SIS AND U R MY BRO