A student has a solid platinum bracelet that he wants to sell, but platinum is priced
by mass, so he needs to know the mass of his bracelet. He knows that the density of
pure platinum is 21.45 g/mL, and when he uses his graduated cylinder, he finds that
the volume of his ring is 6.47 mL. What mass of platinum is the bracelet? Round
your answer to the nearest 0.01 gram.
Your Answer