Platinum, pt, is one of the rarest of the metals. worldwide annual production is only about 130 tons. platinum has a density of 21.4g/cm3. if thieves were to steal platinum from a bank using a small truck with a maximum payload capacity of 900 lb, how many 1 l bars of the metal could they take? (a) 19 bars(b) 2 bars(c) 42 bars(d) 1 bars(e) 47 bars

(A) 19 bars

Explanation:

First off, we calculate the mass of platinum contained in one 1 L bar. To do that we convert 1 L into cm³ -1 L equals to 1000 cm³-.

21.4 g/cm³ * 1000 cm³ = 21,400 g

Each bar of platinum weighs 21,400 grams.

Now we convert the maximum payload capacity of the truck, into grams (1 lb equals to 453,592 g):

Then we divide the weight of one bar by the maximum payload capacity:

408232.8 / 21400 =19.09

Thus the thieves could carry 19 1 L bars