Practice Significant Figures and Rounding Rules - 1.3 | Unit 11: Measurement and Data Processing | IB Grade 11: Chemistry
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1.3 - Significant Figures and Rounding Rules

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

How many significant figures are in the number 0.00123?

💡 Hint: Leading zeros do not count!

Question 2

Easy

Round 5.678 to two significant figures.

💡 Hint: Look at the digit in the third place.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

How many significant figures are in the number 0.045?

  • 2
  • 3
  • 4

💡 Hint: Count only significant digits.

Question 2

True or False: The number 1500 has four significant figures.

  • True
  • False

💡 Hint: Consider using scientific notation for clarity.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You measure a length as 45.678 cm and then convert it to meters. Express the result in scientific notation, including significant figures.

💡 Hint: Remember to convert and keep the significant figures accurate!

Question 2

If you have 150.0 and 3.25, add them and round to the proper number of significant figures.

💡 Hint: The number with the least decimal places determines the rounding.

Challenge and get performance evaluation