Answer
The new ring is genuine.
Work Step by Step
m= 4.53g
V= 0.212 cm^{3}
Use d=m/v
So d= 4.53g/0.212 cm^{3}
d= 21.4 g/cm^{3}
Density of platinum is 21.4 g/cm^{3} so the ring is genuine since they have the same density.
Chemistry: Molecular Approach (4th Edition)
by Tro, Nivaldo J.
Published by
Pearson
ISBN 10:
0134112830
ISBN 13:
978-0-13411-283-1
Chapter 1 - Section 1.6 - The Units of Measurement - For Practice - Page 19: 1.3
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