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| 1. |
A given compound always contatins exactly the same proportion of elements by weight’. Calculate the number of molecules in each of the following:1g CO_2 (Given that N_A is 6.02xx10^23, molecular mass of N_2 is 28 and CO_2 is 44). |
| Answer» SOLUTION :NUMBER of MOLECULES PRESENT in ` 1gCO_2="MASS"/"Grammolecular mass"xxN_A=1/44xx6.02xx10^23=1.37xx10^22` | |