In a reaction x + y + z₂ \(\longrightarrow \) xyz₂ identify the Limiting reagent if any, in the following reaction mixtures.
i) 200 atoms of x + 200 atoms of y + 50 molecules of z₂
ii) 1 mol of x + 1 mol of y + 3 mol of z₂
iii) 50 atoms of x + 25 atoms of y + 50 molecules of z₂
iv)  2.5 mol of x + 5 mol of y + 5 mol of z₂

What is the difference between molecular mass and molar mass ? Calculate the molecular mass and molar mass for carbon monoxide.

How many moles of ethane is required to produce 44 g of CO_2(g) after combustion.

Calculate the amount of water produced by the combustion of 32 g of methane.

How much volume of carbon dioxide is produced when 50 g of calcium carbonate is heated completely under standard conditions ?