What do you mean by limiting reagent?

Calculate the amount of carbon dioxide that could be produced when
(i) 1 mole of carbon is burnt in air.
(ii) 1 mole of carbon is burnt in 16g of dioxygen.
(iii) 2 moles of carbon are burnt in 16g of dioxygen.

In a reaction

Identify the limiting reagent, if any, in the following reaction mixtures.

(i) 300 atoms of A + 200 molecules of B

(ii) 2 mol A + 3 mol B

(iii) 100 atoms of A + 100 molecules of B

(iv) 5 mol A + 2-5 mol B

(v) 2·5 mol A + 5 mol B

205.

Chlorine is prepared in the laboratory by treating manganese dioxide (MnO₂) with aqueous hydrochloric acid according to the reaction



How many grams of HCl react with 5.0 g of manganese dioxide?

Zinc and hydrochloric acid react according to the reaction:



If 0.30 mol Zn are added to hydrochloric acid containing 0.52 mol HCl, how many moles of H₂ are produced?

Define mass percent or weight percent.

Define normality and molarity.