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100
Mole Conversions
Balanced Equations
Stoich!!!Chemical Formulas
Potpourri
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Category #1 100
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Find the mass of a 0.80 mole sample of Ca(NO3)2.
Category #1 Question 200
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Find the moles of krypton (g) present in a 4.8 liter container.
Category #1 Question 300
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Calculate the molar mass of
Pb(NO3)2.
Category #1 Question 400
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Find the volume of 12.0 grams of radon gas at STP.
Category #1 Question 500
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How many Cl2 molecules are needed to occupy a 2 liter bottle at STP?
Category #2 Question 100
Balance the following equation:
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CaF2 + Al2(SO4)3 → AlF3 + CaSO4
Category #2 Question 200
Balance the following equation:
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(NH4)2CO3 + Ni(NO3)3 NH4NO3 + Ni2(CO3)3
Category #2 Question 300
Balance the following equation:
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C2H2 + O2 CO2 + H2O
Category #2 Question 400
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2 HCl (aq) + Mg(OH)2 (s) MgCl2 (aq) + 2 H2O (l)
If a person produces 0.050 mole of excess HCl in the stomach, how many moles of Mg(OH)2 are needed to neutralize this excess hydrochloric acid?
Category #2 Question 500
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Given the following equation:
N2 + 3 H2 2 NH3
If 2 moles of nitrogen and 4 moles of hydrogen are available, how much ammonia could be produced?
Category #3 Question 100
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H3PO4 + 3 NaOH --> Na3PO4 + 3 H2O
How much 0.20 M H3PO4 is needed to react with 100 ml. of 0.10 M NaOH?
Category #3 Question 200
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CaCO3 + 2 HCl --> CaCl2 + H2O + CO2
How much 0.80 M HCl would be needed to dissolve a CaCO3 pearlwhich weighs 4.0 grams?
Category #3 Question 300
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Sea water is about 0.50 M NaCl. To produce Cl2 gas, a companyevaporates sea water, melts the NaCl, and runs electricity through it.2 NaCl --> 2 Na + Cl2 How many liters of sea water are needed to fill a tank car with 1,120,000 liters of chlorine gas at STP?
Category #3 Question 400
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H3PO4 + 3 NaOH --> Na3PO4 + 3 H2OIf 36.0 ml. of H3PO4 react exactly with 80.0 ml. of 0.500 M NaOH, what is the concentration of the phosphoric acid?
Category #3 Question 500
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An experiment begun with 75ml of 0.2M Barium nitrate and 32ml of 0.6M Sodium Sulfate. After collecting and drying the product, 3.45g of precipitate was obtained in laboratory. Calculate the % yield of the precipitate formed.
Category #4 Question 100
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Iron (II) oxide
Category #4 Question 200
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NH4C2H3O2
Category #4 Question 300
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Sodium dichromate
Category #4 Question 400
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Co(ClO4)2
Category #4 Question 500
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Copper (II) Sulfate
Pentahydrate
Category #5 Question 100
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How many molecules are in 200mL of 3M methane gas (CH4)?
Category #5 Question 200
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What is the total number of moles of oxygen atoms present in 1 mole of Mg(ClO3)2?
Category #5 Question 300
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At STP, 5.6 liter of CH4 contains the same number of molecules as (1) 1.4 L of oxygen(2) 5.6 L of hydrogen(3) 2.8 L of ammonia(4) 11.2 L of neon
Category #5 Question 400
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What is the density of Xenon gas at STP?
Category #5 Question 500
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How many atoms of oxygen are in 2 moles of carbon dioxide?
Category 1 Answer 100
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Find the mass of a 0.80 mole sample of Ca(NO3)2.
g 131.2 1mole |
g 164 | mol 0.80
Category 1 Answer 200
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Find the moles of krypton (g) present in a 4.8 liter container.
moles 0.21 L 22.4 |
mol 1 | L 4.8
Category 1 Answer 300
Score Board
Calculate the molar mass of
Pb(NO3)2.
331 g/mol
Category 1 Answer 400
Score Board
Find the volume of 12.0 grams of radon gas at STP.
L 1.2 mol 1 | g 222 |
L 22.4 | mol 1 | g 12.0
Category 1 Answer 500
Score Board
How many Cl2 molecules are needed to occupy a 2 liter bottle at STP?
molecules2223
10 x 5.4 mol 1 | L 22.4 |
molecules 10 x 6.02 | mol 1 | L 2
Category 2 Answer 100
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3 CaF2 + Al2(SO4)3 → 2 AlF3 + 3 CaSO4
Category 2 Answer 200
Score Board
3 (NH4)2CO3 + 2 Ni(NO3)3 6 NH4NO3 + Ni2(CO3)3
Category 2 Answer 300
Score Board
2 C2H2 + 5 O2 4 CO2 + 2 H2O
Category 2 Answer 400
Score Board
2 HCl (aq) + Mg(OH)2 (s) MgCl2 (aq) + 2 H2O (l)
If a person produces 0.050 mole of excess HCl in the stomach, how many moles of Mg(OH)2 are needed to neutralize this excess hydrochloric acid?
0.050 mol HCl | 1 Mg(OH)2 = 0.025 mol Mg(OH)2
| 2 HCl
Category 2 Answer 500
Score Board
Given the following equation:
N2 + 3 H2 2 NH3
If 2 moles of nitrogen and 4 moles of hydrogen are available, how much ammonia could be produced?
hydrogen is the limiting factor.
32
3 NH mol2.7 H mol 3 |
NH mol 2 | H mol 42
Category 3 Answer 100
Score Board
H3PO4 + 3 NaOH --> Na3PO4 + 3 H2O
How much 0.20 M H3PO4 is needed to react with 100 ml. of 0.10 M NaOH?
Category 3 Answer 200
Score Board
CaCO3 + 2 HCl --> CaCl2 + H2O + CO2
How much 0.80 M HCl would be needed to dissolve a CaCO3 pearlwhich weighs 4.0 grams?
Category 3 Answer 300
Score Board
Sea water is about 0.50 M NaCl. To produce Cl2 gas, a companyevaporates sea water, melts the NaCl, and runs electricity through it.2 NaCl --> 2 Na + Cl2 How many liters of sea water are needed to fill a tank car with 1,120,000 liters of chlorine gas at STP?
Category 3 Answer 400
Score Board
H3PO4 + 3 NaOH --> Na3PO4 + 3 H2OIf 36.0 ml. of H3PO4 react exactly with 80.0 ml. of 0.500 M NaOH, what is the concentration of the phosphoric acid?
Category 3 Answer 500
Score Board
An experiment begun with 75g of 0.2M Barium nitrate and 32g of 0.6M Sodium Sulfate. After collecting and drying the product, 63.45g of precipitate was obtained in laboratory. Calculate the % yield of the precipitate formed.
Category 4 Answer 100
Score Board
Iron (II) oxide
FeO
Category 4 Answer 200
Score Board
NH4C2H3O2
ammonium acetate
Category 4 Answer 300
Score Board
Sodium dichromate
Na2Cr2O7
Category 4 Answer 400
Score Board
Co(ClO4)2
cobalt (II) perchlorate
Category 4 Answer 500
Score Board
Copper (II) Sulfate
Pentahydrate
CuSO4·5H2O
Category 5 Answer 100
Score Board
3.61 x 10 ^ 23 molecules CH4
How many molecules are in 200mL of 3M methane gas (CH4)?
Category 5 Answer 200
Score Board
6 moles
What is the total number of moles of oxygen atoms present in 1 mole of Mg(ClO3)2?
Category 5 Answer 300
Score Board
At STP, 5.6 liter of CH4 contains the same number of molecules as
(2) 5.6 L of hydrogen
Category 5 Answer 400
Score Board
What is the density of Xenon gas at STP?
L
g 5.86
L 22.4
g 131.29
Vm
d
Category 5 Answer 500
Score Board
2.41 x 10 ^ 24 atomsO
How many atoms of oxygen are in 2 moles of carbon dioxide?
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