Molar Mass and Percent Composition
Molarity
Types of Reactions
Balancing this!
Stoichiometry foundations
100

The molar mass of CARBON in the following molecule: CH3CH2CH2CH2CH3

What is 60.05 amu 

100

The equation for Molarity

What is Moles or solute (mol)/Volume of Solvent (L)

100

The name of the following reaction C --> A + B

What is a decomposition reaction

100

The balanced equation for 
PCl5(s)+H2O(l)⟶POCl3(l)+HCl(aq)

What is
PCl5(s)+H2O(l)⟶POCl3(l)+2HCl(aq)

100

The reactant that is completely consumed in a reaction

What is the limiting reactant/reagent

200

The molar mass of the following molecule: Ca(NO3)2 

What is 164.086 amu; 

200

The molarity of 0.2074 g of calcium hydroxide, Ca(OH)2, in 40.00 mL of solution 

What is 0.06998 M 

200

The name of the following reaction: A+B --> C

What is a combination reaction
200

The balanced equation for Cu(s)+HNO3(aq)⟶Cu(NO3)2(aq)+H2O(l)+NO(g)

What is
3Cu(s)+8HNO3(aq)⟶3Cu(NO3)2(aq)+4H2O(l)+2NO(g)

200

The limiting reactant when 2.00 g of Si and 1.50 g of N2 react in the following equation:

3Si(s)+2N2(g)⟶Si3N4(s)


What is Silicon (Si)

300

The empirical formula for the following compound with the following percent composition: 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen

What is CH2

300

The mass of the solute in 0.500 L of 0.30 M glucose, C6H12O6, used for intravenous injection?

What is 27 g 

300

The name of a rapid reaction that produces a flame, and produces carbon dioxide and water

What is a combustion reaction

300

The balanced equation for 
(NH4)2Cr2O7(s)⟶Cr2O3(s)+N2(g)+H2O(g)

What is
(NH4)2Cr2O7(s)⟶Cr2O3(s)+N2(g)+4H2O(g)

300

The amount of moles of Ca(OH)2 that are required to react with 1.36 mol of H3PO4 to produce Ca3(PO4)2 according to the equation 3Ca(OH)2+2H3PO4⟶Ca3(PO4)2+6H2O



What is 2.04 mol 

400

The molar mass of a compound of carbon and hydrogen that contains 92.3% C and has a molar mass of 78.1 g/mol

What is C6H6 

400

The volume of a 0.33-M C12H22O11 solution that can be diluted to prepare 25 mL of a solution with a concentration of 0.025 M

What is 1.9 mL 

400

The classification of the following reaction: 
Ca(OH)2(aq)+2HBr(aq)⟶CaBr2(aq)+2H2O(l)

What is an acid-base (neutralization) reaction

400

The balanced equation for the following: Water vapor reacts with sodium metal to produce solid sodium hydroxide and hydrogen gas

What is 
2H2O(g)+2Na(s)⟶2NaOH(s)+H2(g)

400

The amount of NH3 molecules that are produced by the reaction of 4.0 mol of Ca(OH)2 according to the following equation:

(NH4)2SO4+Ca(OH)2⟶2NH3+CaSO4+2H2O



What is 4.8 × 1024 NH3 molecules 

500

The molecular formula for a yellow dye that has a percent composition of 75.95% C, 17.72% N, and 6.33% H by mass with a molar mass of about 240 g/mol

What is C15H15N3

500

The molarity of a 2.00-L bottle of a solution that contains 868.8 g of HCl

What is 11.9 M 

500

The definition of a precipitation reaction 

What is cations and anions coming together to form an insoluble ionic compound 

500

The balanced equation for the following: Gaseous butane, C4H10, reacts with diatomic oxygen gas to yield gaseous carbon dioxide and water vapor

What is
2C4H10(g)+13O2(g)⟶8CO2(g)+10H2O(g)

500

The percent yield of the following: 

Upon reaction of 1.274 g of copper sulfate with excess zinc metal, 0.392 g copper metal was obtained according to the equation:

CuSO4(aq)+Zn(s)⟶Cu(s)+ZnSO4(aq)


What is 77.3%

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