Moles are cute

Moles

100

Find the number of moles in 25.0L of nitrogen gas at STP.

1.12 L of Nitrogen gas

200

Find the number of moles in 2.41 X 10²⁴ fu of NaCl.

4.00 moles

300

Which contains more molecules; 1.0 moles of H₂O_2, 1.0 moles of C₂O₆, or 1.0 moles of CO?

All contain 6.02 x 10²³ molecules

400

Which contains more atoms; 1.0 moles of H₂O_2, 1.0 moles of C₂O₆, or 1.0 moles of CO?

C₂O₆

500

How many moles are in 937 g of Calcium acetate?

5.93 mol Ca(C₂H₃O₂)₂

Molar masses

100

Copper (II) sulfite

CuSO₃ = 143.6 g/mol

200

bromine tetrasulfide

BrS₄ = 208.2 g/mol

300

Rubidium nitride

Rb₃N = 270.4 g/mol

400

Magnesium hydroxide

Mg(OH)₂ = 58.3 g/mol

500

Phosphorus acid

H₃PO₃ = 82.0 g/mol

Fill in the missing reactant and balance.

100

Fe + _____= FeSO₄ + Cu

Fe + CuSO₄ = FeSO₄ + Cu

200

Al + _______ = AlBr₃

2Al + 3Br₂ = 2AlBr₃

300

Bi(NO₃)₃ + ______ = Bi₂S₃ + HNO₃

2Bi(NO₃)₃ + 3H₂S = Bi₂S₃ + 6HNO₃

400

C₂H₅OH + ____ = CO₂ + H₂O

C₂H₅OH + 3O₂= 2CO₂ + 3H₂O

500

____  + _____ = PbI₂ + KNO₃

Pb(NO₃)₂ + 2KI = PbI₂ + 2KNO₃

Fill in the missing product and or balance.

100

C₂H₄ + oxygen = ____ + water

C₂H₄ + 3O₂ = 2CO₂ + 2H₂O

200

dinitrogen trioxide + water = nitrous acid

N₂O₃ + H₂O = 2HNO₂ 

300

silveroxide = oxygen + ______

2Ag₂O = 4Ag + O₂

400

copper + silver chloride = _________ + silver

Cu + 2AgCl = CuCl₂ + 2Ag

500

Br₂ + Barium iodide = I₂ + _________

Br₂ + BaI₂ = I₂ + BaBr₂

Classify the reaction type

100

glucose + oxygen = carbon dioxide + water

Combustion

200

dinitrogen trioxide + water = nitrous acid

Synthesis/ Hookup

300

2Ag₂O = 4Ag + O₂

decomposition/ breakup

400

copper + silver nitrate = copper (II) nitrate + silver

single displacement/ cheater

500

Br₂ + Barium iodide = I₂ +Barium bromide

single displacement/ cheater