Answer: 3g/cm∧3 (One significant figure)
Explanation:
Density is calculated as mass per volume
That is; Density = mass / volume
For the problem above, we have:
Mass = 8g (This has one significant figure i.e. 8)
Volume = 2.8325cm^3 (This has five significant figures i.e. 2,8,3,2,5)
Plugging in the values into the formula,
Density = 8g / 2.8325cm^3
Density = 2.82436g/cm^3
Now, the correct number of significant figures refers to the smallest number of significant figures out of the values given to us.
From the two values given to us, the smallest is 1 significant figure. So, we have to put our answer is the one significant figure pattern i.e. one figure.
Therefore, the correct number of significant figure for the rock's density is one.
The Density of the rock = 3g/cm^3.
