A sample of ammonia weighs 4 g. What mass of sulphur dioxide contains the same number of molecules as are in 4 g of ammonia?
A64 g
B32.02 g
C15.05 g
D30 g
Ammonia = NH3Molecular Mass of NH3 = 17gTherefore, we have 4/17 moles of ammonia as we have only 4g of ammonia.Sulphur di-oxide = SO2Molecular mass of SO2 = 64gWe know mass = No. of moles x molecular massHere, no. of moles = 4/17