# Rate of reaction required practical (Part 2)

In this lesson, students will complete the required practical: Investigate the effect of concentration on rate of reactions by a method involving a change in colour or turbidity. After the required practical, students will explain observations and draw conclusions using particle theory.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 6

Q1.Which of the following equipment is used to measure 20 cm³ of hydrochloric acid?

1/6

Q2.How many times should a practical be repeated to to find a mean?

2/6

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. What is the independent variable (variable that is being changed)?

3/6

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. What is the dependent variable (variable that is being measured)?

4/6

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/6

Q6.How can we check reproducibility to ensure the data obtained from a practical is of high quality?

6/6

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 6

Q1.Which of the following equipment is used to measure 20 cm³ of hydrochloric acid?

1/6

Q2.How many times should a practical be repeated to to find a mean?

2/6

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. What is the independent variable (variable that is being changed)?

3/6

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. What is the dependent variable (variable that is being measured)?

4/6

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with magnesium. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/6

Q6.How can we check reproducibility to ensure the data obtained from a practical is of high quality?

6/6

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Rate of Reaction Required Practical 2

Please complete this exit quiz. This quiz will test your understanding of Rate of Reaction Required Practical 1

## Question 5

Q1.Sodium thiosulphate reacts with hydrochloric acid to form sodium chloride, sulphur, water and sulphur dioxide. Which of the following is the state of sulphur at room temperature?

1/5

Q2.What are two reasons why the rate of the reaction increases as the concentration of hydrochloric acid increases when reacting with sodium thiosulphate?

Select two (2) boxes

2/5

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the independent variable (variable that is being changed)?

3/5

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the dependent variable (variable that is measured)?

4/5

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/5

Quiz:

# Rate of Reaction Required Practical 2

Please complete this exit quiz. This quiz will test your understanding of Rate of Reaction Required Practical 1

## Question 5

Q1.Sodium thiosulphate reacts with hydrochloric acid to form sodium chloride, sulphur, water and sulphur dioxide. Which of the following is the state of sulphur at room temperature?

1/5

Q2.What are two reasons why the rate of the reaction increases as the concentration of hydrochloric acid increases when reacting with sodium thiosulphate?

Select two (2) boxes

2/5

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the independent variable (variable that is being changed)?

3/5

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the dependent variable (variable that is measured)?

4/5

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/5

# Lesson summary: Rate of reaction required practical (Part 2)

### Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance

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