Chemical Properties and the Mole

Determine the molarity of solution made from 37.05 g Ca(OH)₂ (molar mass 74.1 g/mol) dissolved in 3.0 L of water.

• .17 M

• 0.5 M

• 12.4 M

• 0.67 M

Determine the type of chemical reaction below:

Na₂S + 2HCl --> 2NaCl + H₂S

• Synthesis

• Double Replacement

• Combustion

• Decomposition

What is the limiting reactant if 2 moles of Na react with 2 moles of Cl₂ gas?

2 Na + Cl₂ --> 2 NaCl

• Na

• Cl₂

• cannot be determined

• there is none...these are the perfect amounts!

What coefficient will be in front of the HCl in the following reaction when it is balanced?

H₂SO₄ + BaCl₂ --> BaSO₄ + HCl

• 1

• 2

• 3

• 7

Predict the products of the following:

Mg + NaBr -->

• No Reaction

• Na + MgBr₂

• Na + MgBr

• NaMgBr

Predict the synthesis product of the following:

Ca + F₂ -->

• CaF₃

• Ca₂F

• CaF

• CaF₂

What will be the products formed from the following reaction?

C₂H₆ + O₂ -->

• CO + H₂O₂

• CH₄ + CO₂

• CO₂ + H₂O

• CH₆ + CO₂

In a solution, the smaller quantity that is dissolved into the other is the:

• solvent

• solute

• dissolve

• solvate

In a experiment, you combine 4.50 mol of chemical A with excess chemical B according to the reaction below. What is the theoretical yield for chemical C?

2 A + 3 B ---> C + 2 D

• 4.50 mol

• 9.00 mol

• 2.25 mol

• 3.00 mol

In a experiment, you determine the theoretical yield of chemical D is 368 g. However when the experiment is performed, only 299 g are produced. What is the percent yield?

2 A + 3 B ---> C + 2 D

• 18.8%

• 81.3 %

• 3%