Part B. An unknown object is placed on a balance, which then reads 6.118 g. Its volume is measured to be 3.04 cm3. Find the density of this object by dividing mass by volume.
Express your answer in grams per cubic centimeter to the appropriate number of significant figures.
It will be helpful to remember two guidelines about significant figures.
1. After multiplication or division, the answer cannot have more significant figures than any of the original numbers.
2. After addition or subtraction, the answer cannot have more digits to the right of the decimal point than any of the original numbers.
After determining the appropriate number of significant figures, round off your final answer.
1. If the first digit you drop is greater than or equal to 5, add 1 to the last digit you keep. You are rounding up.
2. If the first digit you drop is less than 5, do nothing to the digits you keep. You are rounding down.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Significant Figures concept. You can view video lessons to learn Significant Figures. Or if you need more Significant Figures practice, you can also practice Significant Figures practice problems.