A jeweler offers to sell a ring to Anita and tells her that it is made of platinum. Noting that the ring felt a little light, Anita decides to perform a test to determine the ring's density. She places the ring on a balance and finds that it has a mass of 5.84 g. She also finds that the ring displaces 0.556 cm of water. Anita concludes that the ring is made of Pt. True or False : The density of platinum is 21.4 g/cm.