Question

a student accurately measured the mass of a sample of one of the four minerals to be 294.4 grams and its volume to be 73.6 cm³. which mineral sample did the student measure? a. corundum b. galena c. hematite d. quartz data table mineral density (g/cm³) corundum 4.0 galena 7.6 hematite 5.3 quartz 2.7 what is the approximate density of a mineral with a mass of 262.2 grams that displaces 46 cubic centimeters of water? a. 18 g/cm³ b. 5.7 g/cm³ c. 6.1 g/cm³ d. 12.2 g/cm³

Explanation:

Step1: Recall density formula

Density $
ho=\frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Calculate density for the first - problem

Given $m = 262.2$ g and $V=46$ $cm^{3}$, then $
ho=\frac{262.2}{46}=5.7$ g/$cm^{3}$.

Step3: Calculate density for the second - problem

Given $m = 294.4$ g and $V = 73.6$ $cm^{3}$, then $
ho=\frac{294.4}{73.6}=4.0$ g/$cm^{3}$.

Answer:

For the first problem: B. $5.7$ g/$cm^{3}$
For the second problem: D. quartz