Practice Problem: Significant Figures

This video tutorial covers the concept of significant figures and their application in mathematical operations such as addition, subtraction, multiplication, and division. It also includes a practical problem involving the calculation of density using significant figures. The tutorial emphasizes the rules for determining the number of significant figures in the results of these operations.

What is the main focus of this practice problem?

• Studying periodic table trends

• Exploring atomic structures

• Learning about significant figures

• Understanding chemical reactions

When adding 7.065 and 4.9, what is the correct number of decimal places in the result?

• Three decimal places

• Two decimal places

• One decimal place

• No decimal places

In subtraction, if the numbers have different decimal places, how do you determine the decimal places in the result?

• Use no decimal places

• Use the largest number of decimal places

• Use the average number of decimal places

• Use the smallest number of decimal places

For multiplication, how do you determine the number of significant figures in the result?

• Use the number with the most significant figures

• Use the number with the fewest significant figures

• Use the total number of significant figures

• Use the average number of significant figures

When dividing 267.954 by 109.0, how many significant figures should the result have?

• Four significant figures

• Three significant figures

• Two significant figures

• Five significant figures

What is the volume of water displaced by the metal sample?

• 4.6 milliliters

• 6.6 milliliters

• 3.6 milliliters

• 5.6 milliliters

How many significant figures should the density of the metal be reported with?

• One significant figure

• Two significant figures

• Four significant figures

• Three significant figures