Definitions
What is the definition for Excess reagent?
The reactant that is left over after the reaction is complete
How many mole ratios can be written for the equation? 2KIO3→2Cl+3O2
6
Whats the balanced equation for H2S+KOH→K2S+H2O
H2S+2KOH→K2S+2H2O
How many moles of lithium nitrate are produced when 3 moles of iron III nitrate react? 1Fe(NO3)3 + 3LiOH →1Fe(OH)3+ 3LiNO3
9mol LiNO3
Which is the limiting reactant in this reaction when 0.750 mol N2H4 is mixed with 0.500 mol H2O2? N2H2(0.750mol)+ 2H2O2(0.500mol)→N2(g)+4H2O(g)
H2O2
What is the definition for percentage yield
The ratio of the actual yield to the theoretical yield, multiplied by 100
How many mole ratios can be written for the equation? SiO2(s)+HF(aq)→ SiF4(g)+2H2O(I)
12
whats the balanced equation for Fe+O2→Fe2O3
4Fe+3O2→2Fe2O3
How many moles of lithium hydroxide are needed to produce 6.3 moles of Iron III Hydroxide?1Fe(NO3)3+3LiOH→1Fe(OH)3+3LiNo3
18.9molLiOH
Identify the limiting reaction. How many moles of AlCl₃ can be produced from 5 moles of Al and 6 moles of Cl₂?: 2Al+3Cl2→2AlCl3
Cl2
Whats the definition for Limiting reagent
Something that is completely consumed during a reaction; limits the amount of product produced
How many mole ratios can be written for the equation? 2H2+O2→2H2O
6
Balance the equation: SnO2 + H2 -> Sn + H2O
SnO2 +2H2 -> Sn +2H2O
How many moles of oxygen gas are needed to completely react with 4 moles of hydrogen gas according to:2H2+O2→2H2O
2mol O2
Identify the limiting reactant when 32.0g H2O reacts with 44.5g Na to produce NaOH and H2? 2H2O+2Na→2NaOH+H2
H2O
What's the definition for Theoretical Yield
The maximum amount of product that can be produced from given amounts
How many mole ratios can be written for the equation? CH4 (g)+ H2O(g) →3H2 (g) + CO (g)
12
Balance the equation: 2Fe2O3 + C —> Fe + 3CO2
2Fe2O3 + 3C —> 4Fe + 3CO2
How many moles of copper I oxide would be produced if only 0.35 moles of oxygen were available? 4Cu + O2 → 2Cu2O
0.7mol Cu2O
Identify the limiting reactant when 32.0g H2O reacts with 44.5g Na to produce NaOH and H2
2H2O + 2Na → 2NaOH + H2
H20
What's the definition for actual yield
Amount collected after performing an experiment
How many mole ratios can be written for the equation? 3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O
20
Balance the equation for C6H14+O2→CO2+H2O
2C6H14+19O2→12CO2+14H2O
How many moles of hydrogen gas are needed to produce 70.0 grams of iron? Fe2O3 +3H2 → 2Fe + 3H2O
1.88mol H2
Identify the limiting reactant when 10.5 L of H2S at STP is bubbled through a solution containing 12.0g KOH to form K2S and H2O
H2S + 2KOH → K2S + 2H2O
KOH