How many meters are in 2093 cm?
20.93 m
The experimental measurement for an experiment happens to be 19.7 g. The theoretical value is 19.1 g. What is the percent error?
3.14 % (NO NEGATIVE ANSWER)
A sample of silver has a mass of 101. g. Find the density of silver, if that sample has a volume of 9.619 cm3 of space.
10.5 g/cm3
Identify the number of SFs for the following value:
10.930
5 SF
What is the name of the lab equipment that is used to transport solids when finding the mass of the solid?
Weigh Boat
Convert 15.79 cm into inches.
6.217 in
The true density of pure water is 1.00 g/mL. A student has determined the density of water to be 1.31 g/mL because the student didn't use a pure source of water. What is the student's percent error?
31.0 % (NO NEGATIVE ANSWER)
The density of silver is 10.5 g/cm3. Find the mass of silver that occupies 100 cm3 of space.
1050 g (if using SF --> 1000 g)
Identify the number of SFs for the following value:
10.000
5 SF
True or False: The gas line is ON (gas will come out) if the valve is PERPENDICULAR to the gas valve.
FALSE
Convert 57498 mL into deciliters (kL).
0.057498 kL
As a result of experimental work, a student finds the density of a liquid to be 0.959 kg/cm3. The known density of that liquid is 1.00 kg/cm3. What is the percent error of this student’s work?
4.1 % (NO NEGATIVE ANSWER)
Under certain conditions, oxygen gas (O2) has a density of 0.00134 g/mL. Find the volume occupied by 0.50 g of O2 under the same conditions.
373.13 mL (if SF --> 370 mL)
Identify the number of SFs for the following value:
10000
1 SF
True or False: Accuracy is how close the experimental values are to the accepted values.
TRUE
Convert 956.21 J into calories (cal).
228.54 cal
A student finds the capacity of the test tube to be 15.50 ml. In fact, the real capacity of the test tube is 155.0 ml. What percent error has resulted from the student’s measurement?
90 % (NO NEGATIVE ANSWER)
A 1.78 kg sample of a substance occupies a volume of 125.0 cm3. Find its density in g/cm3.
14.24 g/cm3 (if SF --> 14.2 )
Identify the number of SFs for the following value:
0.0090
2 SF
15 minutes
Convert 3.85 qt into centiliters (cL).
6790 cL
9.4 % (NO NEGATIVE ANSWER)
The density of ethanol is 0.789 g/mL at 20oC. Find the mass of a sample of ethanol that has a volume of 150.0 mL at this temperature.
118.35 g (if SF ---> 118.4)
Identify the number of SFs for the following value:
0.01 x 103
3 SF
Use the multiplication/division rule on answer when working through the following calculation:
2.004 x 1.9 =
3.8