Metric Prefixes
Convert 20 milligrams to grams
What is 0.02 grams?
If an object has a mass of 20.2 g and a volume of 4.35 mL, what is its density? (Round sig figs appropriately, include units)
What is 4.64 g/mL?
How many milliliters are in a 12 fluid ounce soda can?
What is 350 milliliters?
How many sig figs are in 5.20200 x 1024?
What is 6 significant figures?
Sort the following as measuring precision or accuracy:
1. Percent error
2. Percent difference
3. Error range
Precision: Percent difference, error range
Accuracy: Percent error
Convert 1920 kiloliters to liters
What is 1920000 liters?
If an object has a volume of 5.634 mL and a density of 7.645 g/mL, what is the object's mass?
What is 43.07 grams?
The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10-8 cm. What is this distance in inches?
What is 4.76 x 10-9 inches?
What is the product of 6.02 x 1023 and 1.9117 x 10-19? Round to the appropriate number of sig figs and write your answer in scientific notation.
What is 1.15 x 105?
A student measured an object's density as being 8.02 g/mL. The accepted value for the density of the object was 8.51 g/mL. What is the student's percent error?
What is 5.8%?
Convert 924 milliliters to decaliters
What is 0.0924 decaliters?
A rectangular prism has sides with lengths 6 cm, 7cm, and 8 cm. What is its volume?
What is 336 cm3?
Is a 197-lb weight lifter light enough to compete in a class limited to those weighing 90 kg or less?
What is yes? (They weigh 89.4 kg)
What do you get when you add 7.199 x 106 and 8.9614 x 106? Write in scientific notation and use appropriate number of sig figs.
What is 1.616 x 107?
A student repeats a density measurement twice and gets values of 6.7 g/mL and 6.9 g/mL. What is the percent difference between the student's two values?
What is 2.9%?
Convert 12 kilograms to centigrams
What is 1200000 centigrams?
A cylinder has a radius of 8 centimeters and a height of 6 decimeters. What is its volume?
What is 1 x 104 cm3?
Convert the estimated mass of the atmosphere, 5.6 x 1015 tons, to kilograms (1 ton = 2000 lbs)
What is 5.1 x 1018 kilograms?
How many micrograms (ug) are there in 7526 grams? (1 gram = 1 x 106 micrograms).
What is 7.526 x 109 micrograms?
A student repeats measurements of an object's volume and finds the following data:
6.7 g/mL, 6.5 g/mL, 6.7 g/mL, 7.0 g/mL, 7.2 g/mL, and 6.6 g/mL.
What is the student's error range for this experiment?
What is 6.8 +/- 0.35 g/mL?
How many milligrams are there in a kilogram?
What is 1000000?
An object has a radius of 12 cm, a height of 70 mm, and a mass of 15.5 grams. What is the object's density?
What is 5 x 10-3 g/cm3?
The area of a piece of paper is 93.5 in2. What is the area in cm2?
What is 603 cm2?
Challenge: There are 6.022 x 1023 atoms in one mole. How many atoms are contained in 8.923 moles of gold?
What is 5.373 x 1024 atoms of gold?
9.1 g/mL, 9.5 g/mL, 10.0 g/mL, 9.4 g/mL, 9.2 g/mL, 9.6 g/mL, and 9.8 g/mL.
1) What is the percent error between the average of the above results and the true value of 9.7 g/mL?
2) What is the percent difference between the largest and smallest values recorded?
3) What is the error range of the experimental data?
1) What is 2.1%?
2) What is 9.4%?
3) What is 9.5 +/- 0.5 g/mL?