What is the mass of `12.044 xx 10^(23)` number of `O_2` molecules ?

Calculate mass of 6.022 xx 10^(23) number of N_(2) molecules (mass from number ) .

Calculate mass of 3.011 xx 10^(23) number of N_(2) molecules (mass from number) .

Calculate the mass of the following: 6.022 xx 10 ^(23) number of N_3 molecules

Determine the mass of the following : (i) 6.022 xx 10^(23) number of O_(2) molecules (ii) 6.022 xx 10^(23) number of O atoms .

Calculate the mass of 1.51 xx 10 ^(23) molecule of H_2O .

Calculate the mass of the following 6.022 times 10^23 number of N_2 molecules

Calculate the mass of 1.2044 xx 10^(23) molecules of O_(2) ("Atomic mass of O"=16u) .