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.

Explanation:

Step1: Recall the density formula

Density formula is \(
ho=\frac{m}{V}\), where \(
ho\) is density, \( m\) is mass and \( V\) is volume. We can re - arrange it to find mass \( m=
ho\times V\).

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