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WorksheetsStoich Concept Review
Total questions: 20
Worksheet time: 2hrs 51mins
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
Use 2 train tracks!
Use 3 train tracks!
Use 4 train tracks!
Use RICE table.
How many grams of Na are needed to form 7.8 moles of NaCl?
Use 2 train tracks!
Use 3 train tracks!
Use 4 train tracks!
Use RICE tables!
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
Use 2 train tracks!
Use 3 train tracks!
Use 4 train tracks!
Use RICE table!
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
4 moles Fe
6 moles Fe
9 moles Fe
2 moles Fe
LiOH + KCl → LiCl + KOH
b) I actually produced 6 grams of lithium chloride and I began this reaction with 20 grams of lithium hydroxide. What is my percent yield?
Cl2 + 2KBr → Br2 + 2KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?
Use 2 train tracks!
Use 3 train tracks!
Use 4 train tracks!
Use RICE tables!
Mg + 2HCl → MgCl2 + H2
Identify the limiting reactant when 6.00 moles HCl combines with 5.00 moles Mg to form MgCl2.
Mg
H2
MgCl2
HCl
Mg + 2HCl → MgCl2 + H2
Identify the limiting reactant when 18 g HCl combines with 12 g Mg to form MgCl2.
Mg
H2
MgCl2
HCl
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
What is a Excess Reactant?
Percent yield=(________)÷(________)×100%
When reacting Na with Cl2, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?
90.4%
104%
96.15%
1.04%
Use the equation 2 Al + 3 Cl2 ---> 2 AlCl3. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the excess reactant.
Use the equation 2 Al + 3 Cl2 ---> 2 AlCl3. If 2.00 moles of aluminum and 2.00 moles of chlorine are reacted, how many moles of Aluminum Chloride are made?
2.00 moles
3.00 moles
0.667 moles
1.33 moles
Identify the limiting and excess reactants in the reaction shown.
N2 is limiting and H2 is excess.
H2 is limiting and N2 is excess.
NH3 is both limiting and excess.
There is no limiting reactant.
Using the diagram, determine the limiting reactant, the product formed is water.
oxygen
hydrogen
none of the reactant are limiting
both hydrogen and oxygen
