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Chemistry Steps
  • Topics
    • Organic Chemistry
  • Practice Problems
  • Study Guides
  • Quizzes
    • Solutions
  • CS Benefits
  • Log In
    • Register

Chemistry and Math

Significant Figures Practice Problems

by Dr. S. Gevorg
Significant figures in calculations practice problem examples involving addition subtraction division multiplication

In the previous two posts, we discussed the meaning of significant figures, counting them in a number, and the rules of using them in addition, subtraction, multiplication, and division. These are the main ideas you need to remember when working … Read more

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Significant Figures in Addition, Subtraction Multiplication and Division

by Dr. S. Gevorg
significant figures multistep calculation

In the previous post, we talked about significant figures, the ways of counting them, and their importance in the certainty of measurements. Significant figures of a measured number also dictate the certainty of the answer obtained by mathematical operations such … Read more

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Significant Figures

by Dr. S. Gevorg
Interior zeroes are between numbers and significant figures

Significant figures are important in measurements and calculations, and you are going to see them quite often in chemistry. If you have already seen them, there is a chance that you feel slightly lost on getting the point of using … Read more

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Density Practice Problems

by Dr. S. Gevorg
density formula

In these practice problems, we will work on determining the density, volume, and the mass of different objects. First, density is calculated by the ratio of the mass and the volume of the object:     For example, what is … Read more

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Conversion Factors and Dimensional Analysis Practice Problems

by Dr. S. Gevorg
unit conversion plan

In the previous post, we talked about conversion factors and their use in dimensional analysis. Remember, in short, the conversion factors are the ratios of the units for the given quantity. For example, we know that 1 ft is 12 … Read more

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Converting Units With Conversion Factors Dimensional Analysis

by Dr. S. Gevorg
unit conversion plan

All the measurements such as quantity, length, and volume are given with a number and a unit. For example, 2.5 lb, 35 miles, 15 gallons and etc. Now, these units are familiar to you if you live in a country … Read more

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