Question

If 44 g of Carbondioxide contains 'X' molecules what mass of water will have the same number of molecules

Answer 1

44 g of Carbon dioxide contains X molecules. This X will be equal to avogadro number as molar mass (mass of i mole of CO₂) of CO₂ = 44 g mol^-1​ and 1 mole of any substance contains 6.022$\times$10²³ molecules. Now, water contains the same number of molecules. So, 1 mole of water contains 6.022$\times$10²³ molecules of water. Mass of 1 mole of water = 18 g