Answered: Round off each of the following numbers…

Round off each of the following numbers to three significant digits, and express the result in standard scientific notation.a. 254,931b. 0.00025615 47.85 × 103 0.08214 × 105

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter1: Matter, Measurements, And Calculations

Section: Chapter Questions

Problem 1.56E

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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.

Question

Round off each of the following numbers to three significant digits, and express the result in standard scientific notation.
a. 254,931
b. 0.00025615

47.85 × 10³
0.08214 × 10⁵

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