Reaction Rates and Calculations Quiz

What is a reaction rate typically expressed as?

• The change in volume over time

• The change in pressure over time

• The change in the amount of reactant or product over time

• The change in temperature over time

In the example with zinc and hydrochloric acid, what was the rate of reaction?

• 0.02 grams of zinc per 1 day

• 0.02 grams of zinc per 1 hour

• 0.02 grams of zinc per 1 second

• 0.02 grams of zinc per 1 minute

How can a conversion factor be used in calculations?

• It is not used in calculations

• It cannot be flipped

• It can be flipped to suit the calculation needs

• It can only be used in one direction

What is the first step in calculating the rate of reaction in the magnesium and hydrochloric acid example?

• Express the rate as the change in amount over time

• Convert liters to gallons

• Convert minutes to hours

• Express the rate as the change in temperature over time

In the magnesium and hydrochloric acid example, what is the final unit for the rate of reaction?

• Liters of hydrogen per minute

• Milliliters of hydrogen per second

• Liters of hydrogen per second

• Milliliters of hydrogen per minute

What conversion is necessary to calculate the volume of hydrogen produced in 7.5 minutes?

• Convert hours to minutes

• Convert liters to milliliters

• Convert minutes to seconds

• Convert seconds to minutes

What is the volume of hydrogen produced in 7.5 minutes at the given rate?

• 8.0 milliliters

• 7.8 milliliters

• 7.5 milliliters

• 7.2 milliliters

In the final example, what is the first conversion needed to find the time required to produce 3.4 liters of hydrogen?

• Convert liters to milliliters

• Convert liters to gallons

• Convert milliliters to liters

• Convert seconds to minutes

What is the final unit of time calculated in the last example?

• Seconds

• Minutes

• Days

• Hours

How many hours would it take to produce 3.4 liters of hydrogen at the given rate?

• 61 hours

• 58 hours

• 60 hours

• 59 hours