Ncert Exercises & Solutions

1.32 Use the data given in the following table to calculate the molar mass of naturally occurring argon isotopes:

NEETprep answer:

= [(35.96755 x \frac{0.337}{100}) + (37.96272 x \frac{0.063}{100}) + (39.9624 x \frac{90.60}{100})] {gmol}^{- 1}

= [0.121 + 0.024 + 399802] {gmol}^{- 1}

= 399.9947 {gmol}^{- 1}