Density
A sample has a mass of 50.0 g and a volume of 10.0 mL. What is its density?
5 g/mL
Cutting a pizza
Physical
Convert 2.00 lb to ounces.
32 ounces
Multiply Using Sig Fig Rules
12.5 x 23.42
293
A research project lasts 2.50 years. Approximately how many hours does it last?
21,840 hours
A 60 grams piece of metal causes the water in a graduated cylinder to raise from 10 mL to 15.6 mL. What is its density?
10.7 g/mL
Physical
A hiking trail is 3.75 miles long. How many inches long is the trail?
237,600 in
Accurate, Precise, Both, or Neither
Hitting the center of the target 3/3 times.
Both
A chemistry student is preparing for a long-distance experiment. She needs to travel 7.25 miles to a laboratory. How many centimeters will she travel?
1,169,726.4 cm
A substance has a density of 2.00 g/mL and a volume of 15.0 mL. What is its mass?
30 grams
Fireworks
Chemical
A tank contains 6.25 gallons of liquid. How many milliliters does it contain?
23,687.5 mL
Calculate the percent error is a student weighs a 5.5 sample in the lab but was expected to weigh 5.7 grams.
3.5%
A candy factory produces 2,450 pieces of candy per hour. The factory operates 16 hours per day, 6 days per week.
How many pieces of candy will the factory produce in 8 weeks?
1,881,600 pieces
A substance has a mass of 100 g and a density of 5.00 g/mL. What is its volume?
20 mL
Heating your pan of water so it boils when cooking noodles
Physical
An IV delivers medication at a rate of 75 drops/minute. How many mL/hour is this?
225 mL/hour
How many sig figs are in the number 0.020350
5
A patient receives medicine at a rate of 35 drops per minute. The medicine contains 20 drops per mL. The patient receives the medicine continuously for 6 hours.
How many milliliters of medicine does the patient receive?
630 mL
A student is given a piece of metal with a mass of 2.85 kg. The metal is placed into a graduated cylinder containing 125.0 mL of water. After the metal is completely submerged, the water level rises to 463.5 mL. What is the identity of the metal?
Aluminum: 2.70 g/cm³
Copper: 8.96 g/cm³
Silver: 10.5 g/cm³
Gold: 19.3 g/cm³
Copper
Dissolving salt in water
physical
A road is 4.25 miles long. How many centimeters long is the road?
683971 cm
Multiply using sig figs:
1.4 x 104 x 5.56 x 10-3
78
A car travels 28.5 miles per gallon of gasoline. The driver takes a road trip of 675 miles. Gasoline costs $3.49 per gallon.
How much money will the driver spend on gasoline for the trip?
$82.66