MISC
Write the balanced chemical equation
What is the first step in stoichiometry?
C5H12 + 8O2 = 5CO2 + 6H2O The number of moles of carbon dioxide can I make if I start with 16 moles of oxygen gas.
What is 10 moles?
Latin for 'measuring elements'
What is stoichiometry?
Multiply by 22.4 Liters.
What do you use to convert from number of moles to volume?
You should look here when calculating the molar mass of substances.
What is the periodic table?
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is a mole ratio?
How many moles of KClO3 must decompose in order to produce 9 moles of oxygen gas?
6 moles KClO3
The coefficients in a balanced equation.
What do we look at to find mole ratios?
Multiply by Avogadro's Number.
What do you use to convert from number of moles to # of particles?
The molar mass of Fe2O3
What is 159.69 g/mol?
Another name for the mole, after the scientist who studied it.
What is Avogadro's Number?
How many grams of NaCl will be produced from 1.25 mol of chlorine gas reacting with sodium?
146 g
The number of liters of one mole of a gas @ STP.
What is 22.4 liters?
Divide by molar mass, multiply by Avogadro's Number.
What do you use to convert from grams to number of atoms?
The molar mass of calcium hydroxide.
What is 74 grams/mol?
How many moles are present in 34 grams of Cu(OH)2?
What is 0.35 mol Cu(OH)2?
Ammonium nitrate decomposes into dinitrogen monoxide gas and water. Determine the amount in grams of water produced if 25.0 g of ammonium nitrate decomposes.
11.3grams H2O
3.01 x 1023 atoms of hydrogen
What is .5 moles of hydrogen?
Divide by 22.4 Liters then multiply by molar mass.
What do you use to convert from volume to grams?
The number of grams of magnesium in 7.00 moles.
What is 168 g?
States that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
What is the Law of Conservation of Mass?
___H2 + ___ O2 --> ___ H2O The number of grams of oxygen gas which are needed to produce 10 grams of water.
What is 8.89 grams of O2?
This thing that will cause your reaction to stop.
What is the limiting reagent?
Divide by Avogadro's Number then multiply by molar mass
What do you use to convert from molecules to grams?
___CH4 + ___O2 --> ___ CO2 + ___H2O If I want to get 5.3 moles of water, how many moles of methane do I need?
What is 2.65 moles of methane?