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Consider the least-squares problem in Figure 4-11. (a) Suppose that a single new

Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris ISBN: 9781429218153 475

Solution for problem 4-31 Chapter 4

Quantitative Chemical Analysis | 8th Edition

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Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris

Quantitative Chemical Analysis | 8th Edition

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Problem 4-31

Consider the least-squares problem in Figure 4-11. (a) Suppose that a single new measurement produces a y value of 2.58. Find the corresponding x value and its uncertainty. (b) Suppose you measure y four times and the average is 2.58. Calculate the uncertainty based on four measurements, not one.

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Chem 1306 General Chemistry Week 2 Notes Atomic Theory of Matter and its Laws • Law of conservation; in a chemical reaction matter is neither created nor destroyed. • Dalton’s atomic theory of matter; atoms are small, discreet, invisible pieces of matter. • Isotopes; elemental atoms that differ in their mass due to the number of neurons. • Molecules; (compounds) are formed when two of more elements are combined. Law of Definite Proportions -for a given compound, the elements always combine in the same proportion. Law of Multiple Proportions Two elements, A and X can form two different compounds by combining in different proportions. Example #1: A molecule of CO2 has a ratio of one Carbon atom to every two Oxygen atoms, 1:2. Carbon mass:

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Textbook: Quantitative Chemical Analysis
Edition: 8
Author: Daniel C. Harris
ISBN: 9781429218153

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Consider the least-squares problem in Figure 4-11. (a) Suppose that a single new