Molarity
Dilutions
Moles
Volume
Stoichiometry
100

What is the formula for calculating molarity?

M=n/v
100

Which equation is used to calculate the final concentration after dilution

M1V1=M2V2

100

How many moles are in 22.4 liters of a gas at STP?

1 mole

100

What is the volume of 3 moles of a gas at STP?

67.2 liters

100

What is the limiting reactant in the reaction 2H+ O-> 2H2O if 4 moles of Hand 1 mole of Oare mixed?

O2

200

If 0.5 moles of NaCl are dissolved in 2 liters of water, what is the molarity of the solution?

0.25 M

200

What volume of 3 M HCl is needed to prepare 250 mL of 1 M HCl

83.3 mL

200
How many moles of HCl are present in 250 mL of a 2 M solution?

0.5 moles

200

What is the formula for the calculating the volume of a gas using the ideal gas law?

V= nRT/nP

200

What is the mole ratio of Ns to NH3 in the reaction 

N+ 3H-> 2NH3

1 ; 2

300

What is the molarity of a solution containing 10 g of KOH in 500 mL of solution? (Molar mas of KOH = 56 g/mol)

0.357 M

300

If 100 mL of a 2 M solution is diluted to 500 mL, what is the final molarity?

0.4 M

300

What is the formula to calculate the number of moles of a substance?


n = m/M


300

What is the SI unit of volume?

Cubic meter (M3)

300

How many grams of NaCl are produced when two moles of Na react with excess Cl2

2Na + Cl-> 2NaCl.  MNaCl =58.5 g/mol

117 g

400

What is the molarity of a solution containing 58.5 g of NaCl in 1 liter of water? (molar mass of NaCl = 58.5 g/mol)

1 M

400

What happens to the molarity of a solution when it is diluted?

It decreases

400

How many liters of 0.5 M solution are needed to provide 0.25 moles of sol

0.5 L

400

What is the volume of 0.5 moles of an ideal gas at STP?

11.2 liters

400
What is the stoichiometric ratio of HCl to NaOH in the reaction


 HCl + NaOH -> NaCl +H2O

1:1

500

What is the molarity of a solution containing 0.2 moles of solute in 250 mL of solution?

0.8 M

500

What is dilution?

The process of reducing the concentration of a substance (solute) in a solution by adding more solvent

500

What is Avogadro's number?

6.022 * 1023

500

If a gas occupies 10 liters at 300 K, what will its volume be at 600 K, assuming constant pressure?

20 liters

500

What is stoichiometry?

The study of quantitative relationships between reactants and products in a chemical reaction.