Measuring rates of reaction

Name a method to measure the rate of a reaction producing a gas.

Use a gas syringe to measure the volume of gas.

How can you measure the rate of a reaction that forms a precipitate?

Measure the time it takes for a cross to disappear under the solution.

What is a reaction's initial rate?

The rate at the very start of the reaction.

Why is a gas syringe better than a measuring cylinder?

It provides more accurate and reliable measurements.

How can mass loss be used to measure the rate of reaction?

Measure the decrease in mass as a gas is released.

What is the unit for reaction rate when using mass?

g/s.

How can you ensure the reaction is conducted fairly during measurement?

Use the same volumes, concentrations, and temperatures.

What equipment is needed to measure the volume of gas produced?

A gas syringe and a reaction vessel.

How can reaction rates be compared using graphs?

By comparing the gradients of the lines.

Why is it important to record data at regular intervals?

To plot an accurate graph of the reaction rate.

What safety precautions should be taken when measuring reaction rates?

Wear goggles and handle reactive chemicals carefully.

Why might a balance be used in rate experiments?

To measure mass loss when a gas escapes.

What is the purpose of repeating rate experiments?

To ensure reliability and identify anomalies.

Why are temperature-controlled reactions important in rate studies?

To eliminate temperature as a variable affecting the rate.

What is the significance of the steepest part of a rate graph?

It represents the fastest reaction rate.