Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Which of the following has maximum number of atoms? (a) 18g of H_{2}O (b) 18g of O_{2} (c) 18g of CO_{2} (d) 18g of CH_{4}

Which of the following has maximum number of atoms?

(a) 18g of H_{2}O
(b) 18g of O_{2}
(c) 18g of CO_{2}
(d) 18g of CH_{4}

Answers (1)

Answer: D

Solution.

N_{A} = 6.023 \times 10^{23}

(a) 18 g of water =18 \times \frac{3}{18}\times N_{A} = 3 N_{A}

(b) 18 g of oxygen = 18 \times \frac{3}{32} \times N_{A} = 1.12 N _{A}

(c) 18 g of CO_{2} = 18 \times \frac{3}{44} \times N_{A} = 1.23 N_{A}

(d) 18 g of CH_{4} =18\times \frac{5}{16}\times N_{A} = 5.63 N_{A}

Posted by

infoexpert26

View full answer

Similar Questions

Latest Question