Question

find the mass of H2O that contains same number of molecules as in 50g od SO2

Answer 1

Answer:- 14 g of water.

Solution:- Number of water molecules is same as number of sulfur dioxide molecules it means they have equal number of moles. We will calculate the moles of sulfur dioxide from its given grams and the moles of water will also be equal that can easily be converted to grams on multiplying by the molar mass of water.

The calculations are shown using dimensional analysis as:

$50gSO_2(\frac{1molSO_2}{64gSO_2})(\frac{1molH_2O}{1molSO_2})(\frac{18gH_2O}{1molH_2O})$

= $14gH_2O$

So, the 14 grams of water contains same number of molecules as in 50 grams of sulfur dioxide.