Question

25. One atom of an element weighs 1.8 x 10-22 g, its atomic
mass is:
a. 29.9 g
b. 18 g
c. 108.36 g d. 154 g​

Answer 1

Answer:

(c) 108.36 is the correct answer

Explanation:

given mass/MOLECULAR MASS= no of atoms given/ avagadro no

1.8× 10^-22/ X = 1/6.022×10^-23

X = 108.36 g

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Answer 2

Answer:

108.36 is the correct answer for this question

Explanation:

1 atom of an element = 1.8×10^-22 g

Now,

mass of one atom = GAM/ NA

1.8×10^-22 = GAM/ 6.022×10^23

GAM= 108.396 g

GAM- gram atomic mass

NA- Avogadro's number