Question

use the data below to calculate the density of each unknown substance. then use the density chart above to determine the identity of each substance.

substance	density (g/cm³)	mass (g)	volume (cm³)	density (g/cm³)	substance
gold	19.32	5.83	2.2
quartz	2.65	378	36.05
silver	10.49	25.5	16
aluminum	2.7	7.083	0.9
nickel	8.9	61.83	3.2
sugar	1.59
iron	7.87

Explanation:

Step1: Calculate density for 5.83g/2.2cm³

$
ho = \frac{5.83}{2.2} = 2.65$

Step2: Match 2.65 with density chart

Quartz has density 2.65

Step3: Calculate density for 378g/36.05cm³

$
ho = \frac{378}{36.05} \approx 10.49$

Step4: Match 10.49 with density chart

Silver has density 10.49

Step5: Calculate density for 25.5g/16cm³

$
ho = \frac{25.5}{16} \approx 1.59$

Step6: Match 1.59 with density chart

Sugar has density 1.59

Step7: Calculate density for 7.083g/0.9cm³

$
ho = \frac{7.083}{0.9} = 7.87$

Step8: Match 7.87 with density chart

Iron has density 7.87

Step9: Calculate density for 61.83g/3.2cm³

$
ho = \frac{61.83}{3.2} \approx 19.32$

Step10: Match 19.32 with density chart

Gold has density 19.32

Answer:

Mass (g)	Volume (cm³)	Density (g/cm³)	Substance
5.83	2.2	2.65	Quartz
378	36.05	10.49	Silver
25.5	16	1.59	Sugar
7.083	0.9	7.87	Iron
61.83	3.2	19.32	Gold