Multi-Step Chemistry Problems Quiz - CAHS DL week 5

Why is it important to do multi-step calculations using one long factor-label table, rather than several separate calculations? (Choose the BEST answer.)

• Because that's what our teachers told us to do.

• There's no other way to do the math correctly.

• It makes the math easier to read.

• It's the best way to keep track of the units that are cancelled in the steps.

What is a good way to keep track of what to do next during a multi-step conversion problem?

• Use a conversion map such as the "Mole Town" map.

• Memorize the formulas and constants for every type of Chemistry problem.

• The factor-label table keeps track for you, so you don't need anything else.

• Look up the solution on Google.

What is the conversion factor between mass of a substance in grams and number of moles of the substance in that sample?

• Ideal Gas Law

• Molarity

• Molar Mass

• Avogadro's Number

What is the conversion factor between number of moles of substance and number of molecules of the substance?

• Ideal Gas Law

• Molarity

• Molar Mass

• Avogadro's Number

Which of the following would you use to determine the number of moles in a sample of gas with a known volume, temperature and pressure?

• Ideal Gas Law

• Molarity

• Molar Mass

• Avogadro's Number

When converting between units, it could be said that "Everything runs though ___________." Which unit best fills the blank? (Meaning that all the other units can be converted to that unit in one step.)

• grams

• moles

• liters

• particles

To convert between amount of reactant and amount of product produced in a chemical reaction, the amount of starting substance must be converted to what unit?

• grams

• atoms

• particles

• moles

When converting between amount of reactant and amount of product produced in a chemical reaction, the step to change from the starting substance into a different substance requires what conversion factor? (Hint: This conversion factor connects two different "Mole Towns".)

• Molar Mass

• Molarity

• Mole Ratio

• Molar Volume

Where do you find the mole ratio conversion factor for problems involving a chemical reaction?

• The coefficients in the balanced chemical equation.

• The subscripts in the correct chemical formulas.

• The small number under the symbols on the periodic table.

• It is determined by experimentation.

Which of the following conversion factors is a constant, meaning it is always the same value, no matter what substance is being converted?

• Molar Mass

• Molarity

• Avogadro's Number

• Mole Ratio