1. Gold (Au) has been used to make ornamental objects and jewelry for thousands of years. Gold nuggets found in a stream are very easy to work and were probably one of the first metals used by humans. (1 mol of Gold (Au) = 196.97g). Calculate the: %3D LMD A. Number of moles in a 95.0 g sample of a gold nugget. B. Number of atoms in a 95.0 g sample of a gold nugget.

1. Gold (Au) has been used to make ornamental objects and jewelry for thousands of years. Gold nuggets found in a stream are very easy to work and were probably one of the first metals used by humans. (1 mol of Gold (Au) = 196.97g). Calculate the: %3D LMD A. Number of moles in a 95.0 g sample of a gold nugget. B. Number of atoms in a 95.0 g sample of a gold nugget.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

1. Gold (Au) has been used to make ornamental objects and jewelry for thousands of
years. Gold nuggets found in a stream are very easy to work and were probably
one of the first metals used by humans. (1 mol of Gold (Au) = 196.97g). Calculate
the:
1 MD
A. Number of moles in a 95.0 g sample of a gold nugget,
B. Number of atoms in a 95.0 g sample of a gold nugget.
2. During exercise, lactic acid (C3H6O3) forms in the muscles causing muscle cramp.
If 5.0 g of lactic acid (C3H6O3) concentrate in your leg muscles, how many
molecules of lactic acid is causing you pain? (C =
0= 16.0 g/mol)
12.0g/mol, H = 1.008 g/mol,
TE CALABE
A

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