Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

± The Mole as a Counting Unit Suppose a piece of silver jewelry contains 6.02x10

ID: 942194 • Letter: #

Question

± The Mole as a Counting Unit Suppose a piece of silver jewelry contains 6.02x1022 atoms of silver (Ag) There are several common counting units Part A 1 dozen 12 . 1 score= 20 How many dozens of silver atoms are in the piece of jewelry? 1 ream-500, and 1 gross 144 rically in dozer The mole (mol) is a counting unit used by chemists, much like the dozen is a counting unit used by bakers 501x1021dozen Submit Hints My Answers Give Up Review Part 1 mol 6.022 x 102*3 Correct Part B How many moles of silver atoms are in the piece of jewelry? Express your answer numerically in moles mol Submit Hints My Answers Give Up Review Part

Explanation / Answer

Part B 0.1 mol

Part C 1.7712  * 1023

Mol = mass / molar mass

= 28.0 /95.21

= 0.29408 moles

1 mole = 6.022 * 1023 formula units

for 0.29408 mole = 0.29408 *  6.022 * 1023

= 1.7712  * 1023 formula units