Molar Conversions
Percent Composition
Molarity
Dilutions
Random Topics
100

Avogadro's number is ______________.

What is 6.02 x 1023?

100

All of those percentages from a percent composition should add up to ________%.

What is 100%?

100

Molarity is another way to describe the _________________ of a solution.

What is Concentration?

100

What is the most common solvent on Earth?

What is water?

100

A solution that has water as the solvent is called an ________________ solution.

What is an aqueous solution?

200

The unit for molar mass is _____________.

What is (grams/mol)?

200

Ammonium has the formula NH4. What is the ratio of nitrogen to hydrogen in this compound?

What is 1:4?

200

What effect does adding water have on the molarity of a solution?

It decreases it.

200

What is added to a solution during a dilution?

What is more solvent?

200

What is the empirical formula for C12H20O8?

What is C3H5O2?

300

What conversion factor would you use to convert from volume (Liters) to moles?

What is (1 mol/22.4 Liters)?

300

Which law states, "Compounds contain elements in a fixed ratio by mass"?

What is the Law of Definite Proportions?

300

How can you increase the molarity or concentration of a solution?

What is add more solute to the solution?

300

What remains constant during a dilution?

What is the moles of solute?

300

What are the three types of representative particles we learned about in this chapter?

What are atoms, molecules, and formula units?

400

What conversion factor would you use to convert 3 moles of Lithium to grams of Lithium?

What is (7 grams/1 mol)?

400

What is the percent composition of carbon monoxide, CO?

What is 43% Carbon and 57% Oxygen.

400

A solution is made by dissolving 5 moles of sodium chloride in 3 Liters of solution. What is the molarity of this solution?

What is 1.7 moles/Liter?

400

What formula do you use for all dilution problems?

What is M1V1=M2V2?

400

What is the difference between a dilute solution and a concentrated solution?

What is the concentrated solution has more solute particles per liter dissolved in it? or

What is the dilute solution has more solvent particles diluting the solute?

500

What two conversion factors would you use to convert 20 grams of carbon dioxide (CO2) to liters of carbon dioxide?

What are (1 mol/44 grams) and (22.4 liters/1 mol)?

500

Phosphorous trichloride has a percent composition of 23% Phosphorous and 77% Chlorine. What are two conversion factors you can write from this percent composition?

What are 

23 grams Phosphorous = 100 grams Phosphorous trichloride

77 grams Chlorine = 100 grams Phosphorous trichloride

500

What is the molarity of a solution made by dissolved 100 grams of potassium hydroxide, KOH in 0.5 Liters of solution? Round answer to the tenths place.

What is 3.6 mol/Liter?
500

What formula would you use to find the final molarity(concentration) in a dilution problem?

What is M2=(M1V1)/V2?