Question

question 5
15 pts

1. what is the mass of a pure platinum disk with a volume of 113 cm³? the

density of platinum is 21.4 g/cm³.
give a numerical answer only, round to 1 decimal place.

question 6
10 pts

1. a carver begins work on a block of granite that measures 20 cm by 10 cm by 5

cm. granite has a density of 2.7 g/cm³. what is the mass of the piece of granite?
a. what do you need to calculate before you can find the mass? what is that
value? include units on your answer.
edit view insert format tools table

Explanation:

Step1: Recall the density formula

The formula for density is \(
ho=\frac{m}{V}\), where \(
ho\) is density, \( m\) is mass, and \( V\) is volume. Rearranging for mass gives \( m =
ho\times V\).

Step2: Substitute the given values

Given \(
ho = 21.4\space g/cm^{3}\) and \( V=113\space cm^{3}\), then \( m=21.4\times113\).

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Answer:

2418.2