Stoichiometry Flashcards
What is the molar mass of CO2
44.01g
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if I have 7 moles of oxygen how many moles of Hydrogen will be needed to use up all the oxygen and make water?
14.00 moles of Hydrogen
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if I have 205.30 moles of water how many moles of oxygen would I need?
102.65moles of Oxygen
How many decimal places do you write the answers in?
2 DECIMAL PLACES ALWAYS
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if I have 0.40moles of hydrogen, how many moles of water can I make?
0.40 moles of water
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if we have 0.52g of hydrogen how many GRAMS of oxygen will we need to make water?
we need 4.12g of oxygen to make water
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if you have 1.00g of hydrogen how much water can you make?
0.50moles of water
2H2 + 1O2 -> 2H2O
Using this BALANCED equation, if you have 1.00g of hydrogen how much oxygen will you need to make as much water as possible?
0.25moles of oxygen
Balance this equation:
__(Fe2)(O3) + __Al–> __(Al2)(O3) + __Fe
1(Fe2)(O3) + 2(Al) –> 1 (Al2)(O3)+ 2(Fe)
(Mg) + 2(HCl) –> (MgCl2) + (H2)
If you have 24.3 g of Mg, how many grams of H2 will you produce?
2.02g of hydrogen
2(Na) + (Cl2) –> 2 (NaCl)
If you want to produce 54 g of (NaCl), how many grams of (Cl2) do you need?
33.00 grams of (Cl2)
(Mg) + 2(HCl) –> (MgCl2) + (H2)
If you have 0.94 moles of HCl, how many grams of Mg do you need?
11.00g of Mg
2 (Na) + (Cl2) –> 2 (NaCl)
If you have 141.8 g of (Cl2), how many moles of Na do you need?
4.00moles of Na
2 (Na) + (Cl2) –> 2 (NaCl)
If you have 4.0 moles of (Cl2), how many grams of Na do you need?
180.00g of Na
Mg + 2(HCl) –> (MgCl2) + (H2)
If you have 42.1 g of HCl, how many moles of H2 will you produce?
0.58moles of hydrogen
Mg + 2(HCl) –> (MgCl2) + (H2)
If you have 66.6 moles of HCl, how many moles of Mg will you require?
33.30moles of Mg
2 (Na) + (Cl2) –> 2 (NaCl)
If you have 313.2 moles of NaCl, how many moles of Na did you begin with?
313.20moles of Na
Mg + 2(HCl) –> (MgCl2) + (H2)
If you have 2.0 moles of Mg, how many moles of (MgCl2) will you make?
2.00moles of (MgCl2)
2 (Na) + (Cl2) –> 2 (NaCl)
If you have 3.2 moles of Na, how many moles of (Cl2) do you need?
1.6moles of (Cl2)
What is the molar mass of (Fe2)(O3)?
159.70g
What is the molar mass of 2(Al) ?
53.96g
What is the molar mass of (Fe2)(O3)+ 2(Al) ?
213.66g
What is the molar mass of 2(H2O) ?
36.04g
How many moles are in CO2?
1 mole
How many moles are in 2(Fe2O3) ?
2 moles
