Question

A water sample shows 0.012 grams of some trace element for every cubic centimeter of water. Mariam uses a container in the shape of a right cylinder with a diameter of 18.4 cm and a height of 14.9 cm to collect a second sample, filling the container all the way. Assuming the sample contains the same proportion of the trace element, approximately how much trace element has Mariam collected? Round your answer to the nearest tenth.

Answer 1

From the question and the analysis given.

Let's use volume of a cylinder.

Volume of a cylinder = πr²h

Diameter = 18.4

r = diameter/2

r = 18.4/2

r = 9.2cm

h = 14.9cm

π = 3.14

Volume = 3.14 * 9.2² * 14.9

Volume = 3.14 * 84.64 * 14.9

Volume = 3959.96704 cm³

Trace elements = 3959.96704 * 0.012

Trace elements = 47.51960448

Trace element = 47. 52 grams.