Question

The sample with largest number of atoms is
(a) 1 g of O2(9)
(b) 1g of Ni(s)
(d) 1 g of N2(g).
(c) 1 g of B(s)​

Answer 1

Answer:

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Answer 2

Answer: OPTION (c.)

Explanation:

Given,

1.)1g of O2- 32g/mol------32g mass= NA no. of particles

                                        1 g mass =NA/32

                                         1 atom of oxygen = NA/32*2

                                         i.e NA/16-------------1

2.) 1 g of Ni- 59g/mol------59g of mass=NA no. of particles

                                          1 g of mass =NA/59----------------2

3.) 1 g of B- 11g/mol------------11 g of mass= NA no. of particles

                                           1 g of mass= NA/11-------------------3

4.) 1 g of N2- 28g/mol--------28 g of mass=NA no. of particles

                                             1g of mass=NA/28

                                             1 atom of nitrogen=NA/28*2

                                             i.e NA/14------------------------------4

from the above explanation we can conlcude that

1g of B has the highest no of atoms,

OPtion (c)

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