Question

Q1 :- For the reaction shown, calculate how many grams of oxygen form when each quantity of reactant completely reacts.
2HgO(s)→2Hg(l)+O2(g)

(C) 1.73 kgHgO

(D) 3.60 mgHgO

Q2:-

For the reaction

2KClO3(s)→2KCl(s)+3O2(g)

calculate how many grams of oxygen form when each quantity of reactant completely reacts.

You may want to reference (Pages 253 - 256) Section 8.4 while completing this problem.

A - 2.66 gKClO3

B- 0.400 gKClO3

C- 80.0 kgKClO3

D- 20.8 mgKClO3

Q3:- Sulfuric acid can dissolve aluminum metal according to the following reaction.
2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g)Suppose you wanted to dissolve an aluminum block with a mass of 26.8 g .

A- What minimum amount of H2SO4 in grams would you need?

B- How many grams of H2 gas would be produced by the complete reaction of the aluminum block?

Q4: Hydrochloric acid can dissolve solid iron according to the following reaction.
Fe(s)+2HCl(aq)→FeCl2(aq)+H2(g)

A- What minimum mass of HCl in grams would you need to dissolve a 2.3 g iron bar on a padlock?

Express your answer using two significant figures

B- How much H2 would be produced by the complete reaction of the iron bar?

Express your answer using two significant figures.

Answer 1