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2.49×106 kJ to kcal Express the value in kilocalories to three significant figures.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 20RPS

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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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2.49×10⁶ kJ to kcal

Express the value in kilocalories to three significant figures.

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how many joules are there in 71.8 kcal (1 cal 4.184 j) remember to use the significant figure rule when you get your answer