Mix
This is the branch of chemistry that deals with mass relationships in compounds and reactions.
What is Stoichiometry?
This is the coefficient of hydrogen gas in the balanced form of the following reaction: H2 + O2 --> H2O
What is 2?
This is the amount of magnesium chloride produced (in grams) if 20.0 g of magnesium react with excess hydrochloric acid Mg + HCl -------> MgCl2 + H2
39.2 grams
This is the ingredient that is the limiting reactant if you have 5 cups of flour, 9 eggs and 3 tbs of oil? Given: 2 cups flour + 3 eggs + 1 tbs oil → 4 waffles
What is flour?
The percent yield tells you a relationship between the _________ yield and actual yield of a certain product.
What is theoretical?
In a chemical reaction, these numbers can be used to determine the mole ratio of any reactants and/or products.
What are coefficients?
This is the coefficient in front of nitrogen gas in the correctly balanced form of the equation:
(NH4)NO2 --> N2 + H2O
What is 1?
This is the amount of lithium nitride produced if 5.50g of Lithium reacts with an excess of nitrogen gas. The reaction: 6Li + N2 --> 2Li3N
What is 9.16 grams?
In a chemical reaction, reactants that are not use up when the reaction is finished are called
What is excess reactants?
This is the actual amount of grams produced if the theoretical yield of a reaction is 42.0 grams of product and the percent yield is 75%.
What is 32 g?
These are the units of molar mass.
What is g/mol?
This is the amount of moles of water that are made from complete reaction of 2.2 moles of oxygen gas with hydrogen gas Given the reaction:
2H2 + O2 → 2H2O
What is 4.40 moles?
This is the amount of calcium carbonate produced when a chemist reacts 5.75L of CaO with an excess of CO2. The reaction: CaO + CO2 ---> CaCO3
What is 25.7 grams?
What type of reaction always reactions with O2 and has CO2 and H2O as the products?
What is a Combustion reaction?
This is the percent yield when a sample of 8.5 g NH3 on oxidation produces 4.5 g of NO. Reaction:
4 NH3 + 5 O2 → 4 NO + 6 H2O
What is 30%?
In the reaction represented by the equation 2Al2O3 --> 4Al + 3O2, this is the mole ratio of Aluminum to Aluminum Oxide.
What is 4:2?
This is the amount (in Liters) of zinc chloride produced from the reaction of 203 grams of lithium chloride and an excess of zinc. 2LiCl + Zn ---> ZnCl2 + 2Li
What is 53.6 Liters?
In a chemical reaction, reactants that are used first are called?
What is a Limiting Reactant?
Double Jeopardy
To perfrom a % yield reaction what is stoichiometry used to find?
What is the theoretical yield?
Double Jeopardy!!!
This is the molar mass of Copper (II) sulfate.
What is a 160 g/mol?
This is how many moles of LiOH are required to react 20 moles of CO2 in the following reaction: CO2 + 2LiOH --> Li2CO3 + H2O
What is 40.0 moles?
This is the amount (in molecules) of aluminum oxide produced from the reaction of 0.353 grams solid aluminum with an excess of oxygen gas. 4Al + 3O2 ---> 2Al2O3
What is 3.94 x 1021 molecules?
What are the 5 types of chemical reactions>
What is synthesis, decomposition, single replacement, double replacement, and combustion?
A reaction with a calculated yield of 9.23 g produced 7.89 g of product. What is the percent yield of this reaction?
What is 85.5%?