Name per.___ Stoichiometry Assessment

Match the terms:

Limiting reactant a. Found on the right side of a chemical equation

Excess reactant b. The conversion from substance A to B

Mole c. Reactant that determines the reaction

Reactants d. A unit of measurement for atoms and molecules

Products e. Total mass from the periodic table

Mole ratio f. Found on the left side of a chemical reaction

Molar mass g. Reactant that is left over in a chemical reaction

What is the molar mass of the following:

Ca AlCl3 Fe(NO3)2

How many moles are in the following: (1step)

25 grams of NaCl

12 grams of Be(NO3)2

How many grams are in the following:(1 step)

2.5 moles of Al

15 moles of Li2O

Calculate the following:underline is looking for which is (B)BOLD is given, the (A)

If 7 moles of Mg(OH)2 react, how many moles of H2O could be produced?
Mg(OH)2 + 2HCl MgCl2 + 2H2O

If 100.0 g of oxygen gas reacts with excess ammonia, how many moles of NO will be produced?
4 NH3 + 5 O2 4 NO + 6 H2O

If 155 grams of Al(NO3)3 are used up how many grams of HNO3 will be produced?
2Al(NO3)3 + 3H2SO4 Al2(SO4)3 + 6HNO3

How many grams of CsCl will be produced from 80.5 grams Cs2SO4? (Balance the equation)
Cs2SO4 + KCl → CsCl + K2SO4

If 85 grams of Potassium Chloride (KCl) decomposes, How many grams Chlorine gas is produced? (finish the equation and balance)
KCl →

How many grams of carbon dioxide are produced when 79.2g of pentane, C5H12 combust?
(finish the equation and balance)
C5H12 + +

How many grams of Magnesium will be formed when Li reacts with 50.0 grams of Mg3N2. (finish the equation and balance)
Li + Mg3N2

How many grams of Na2S is needed to react with 268.5g AlBr3? (finish the equation and balance)
Na2S + AlBr3