What are atomic weight and molecular weight in grams

It is found that in 11.2 litres of any gaseous compound of phosphorus at NTP, there is never less than 15.5 g of P. Also, this volume of the vapour of phosphorus itself at NTP weighs 62 g. What should be the atomic weight and molecular weight of phosphorus?

If the number average molecular weight and weight average molecular weight of a polymer are 40,000 and 60,000 respectively, the polydispersity index of the polymer will be

Give an example of molecule in which. (i) Ratio of molecular formula and empirical formula is 6: 1 (ii) Molecular weight is 2 times of the empirical formula weight. (iii) The empirical formula is CH_2O and ratio of molecular formula weight and empirical fórmula weight is 6 .

(a) How many signifficant figures are there in '1.00 xx 10^6' ? (c) Give an example of molecule in which the empirical formula is 'CH_2 O' and the ratio of molecular formula weight and empirical formula weight is 6 .

If M_w is the weight-average molecular weight and M_n is the number, the poly dispersity index (PDI)of the polymer is given by