Stoichiometry

Front

Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from 6 moles H₂?

Back

4 moles Fe

Front

12.00 moles of NaClO₃ will produce how many grams of O₂?

Back

576 g of O₂

Front

What is the limiting reactant if 10 moles of NH₃ react with 30.0 moles of NO?
4NH₃+6NO --> 5N₂ + 6H₂O

Back

NH₃

Front

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

Back

5.2 g

Front

Fe (s) + S (l) --> FeS (s)

In the experiment above, 7.62 g of Fe are allowed to react with 8.67 g of S.
How much FeS is formed?

Back

12.2 g

Front

Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl₂.
 
Mg +  2HCl --> MgCl₂  +  H₂   
 Options: Mg, H2, MgCl2, HCl

Back

HCl

Front

When two substances react to form products, the reactant which is used up is called the _____.

Back

limiting reactant

Front

What can be determined from a balanced chemical equation? Options: Mole ratio of any two substances in the reaction, Energy released in the reaction, Electron configuration of all elements in the reaction, Mechanism involved in the reaction.

Back

Mole ratio of any two substances in the reaction

Front

What is the % yield of the decomposition reaction if 7.4g Pb(NO₃)₂ are heated to give 4.1 g PbO?
2Pb(NO₃)_{2 (s)}→2PbO_(s)+4NO_2(g)+O_2(g)

Back

82%

Front

Empirical formula for a compound with 92.30% carbon and 7.70% hydrogen

Back

CH