EV = 2.8 g/cm3TV = 2.702 g/cm3 The accuracy of a measured value, such as a melting point, may be evaluated by a calculation of percenterror. Percent error is a common way of reporting how close a measured experimental value (EV) is tothe true value (TV):EV - TV |TVAccurate measurements will typically have low percent errors of <5%.Percent Error =×100

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The accuracy of a measured va error. Percent error is a comm the true value (TV): Accurate measurements will ty

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 77QRT: The label on a bale of mulch indicates a volume of 1.45 ft3. The label also states that the mulch in...

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

EV = 2.8 g/cm³

TV = 2.702 g/cm³

The accuracy of a measured value, such as a melting point, may be evaluated by a calculation of percent
error. Percent error is a common way of reporting how close a measured experimental value (EV) is to
the true value (TV):
EV - TV |
TV
Accurate measurements will typically have low percent errors of <5%.
Percent Error =
×100

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