a. Round off the number 0.00099957 to three significant figures. b. Calculate the arithmetic average of the following weight measurements and express the result with correct number of significant figures: 2.43 g, 2.49 g, 2.48 g.

a. Round off the number 0.00099957 to three significant figures. b. Calculate the arithmetic average of the following weight measurements and express the result with correct number of significant figures: 2.43 g, 2.49 g, 2.48 g.

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter3: Measurement And Chemical Calculations

Section: Chapter Questions

Problem 64E: Exactly 1 liter of a solution contains 31.4 grams of a certain dissolved substance. What mass in...

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

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a. Round off the number 0.00099957 to three significant figures.
b. Calculate the arithmetic average of the following weight measurements and express the result with correct number of significant figures: 2.43 g,
2.49 g, 2.48 g.

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