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WorksheetsChemistry - Laboratory Activity 1: Density (Review)
Total questions: 54
Worksheet time: 59mins
At standard temperature and pressure (STP), which physical property of aluminum always remains the same from sample to sample?
mass
density
length
volume
At standard temperature and pressure (STP), which physical property of helium always remains the same from sample to sample?
mass
density
length
volume
At standard temperature and pressure (STP), which physical property of bromine always remains the same from sample to sample?
mass
density
length
volume
Base your answer to the question on the information below.
A student prepared two mixtures, each in a labeled beaker. Enough water at 20. °C was used to make 100 milliliters of each mixture.
Determine the volume of the Iron filings.
(a)
The units of density could be
milliliters per gram
milliliters
gram
grams per milliliter
The units of density could be
cubic centimeters per gram
cubic centimeters
gram
grams per cubic centimeter
A method used by ancient Egyptians to obtain copper metal from copper (I) sulfide ore was heating the ore in the presence of air. Later, copper was mixed with tin to produce a useful alloy called bronze.
Which expression can be used to calculate the density of a 129.5-gram sample of bronze that has a volume of 14.8 cubic centimeters?
129.5 g×14.8 cm3
129.514.8(cm3g)
129.5 g +14.8 cm3
14.8129.5(cm3g)
An unlit candle is secured to the bottom of a 200.-milliliter glass beaker. Baking soda (sodium hydrogen carbonate) is added around the base of the candle as shown below.
The candle is lit and dilute ethanoic acid is poured down the inside of the beaker. As the acid reacts with the baking soda, bubbles of CO2 gas form. After a few seconds, the air in the beaker is replaced by 200.-milliliters of CO2 gas, causing the candle flame to go out. The density of CO2 gas is 0.0018 grams per milliliter at room temperature.
Determine the mass of the CO2 gas that replaced the air in the beaker.
(a)
A student measures the mass and volume of a sample of aluminum at room temperature, and calculates the density of aluminum to be 2.85 grams per cubic centimeter. Based on Table S, what is the percent error for the students calculated density of aluminum?
2.7%
5.3%
5.6%
9.5%
A student measures the mass and volume of a sample of aluminum at room temperature, and calculates the density of aluminum to be 2.84 grams per cubic centimeter. Based on Table S, what is the percent error for the students calculated density of aluminum?
2.59%
5.19%
5.56%
95.0%
A student measures the mass and volume of a sample of aluminum at room temperature, and calculates the density of aluminum to be 2.77 grams per cubic centimeter. Based on Table S, what is the percent error for the students calculated density of aluminum?
2.59%
5.19%
5.56%
95.0%
An unlit candle is secured to the bottom of a 300.-milliliter glass beaker. Baking soda (sodium hydrogen carbonate) is added around the base of the candle as shown below.
The candle is lit and dilute ethanoic acid is poured down the inside of the beaker. As the acid reacts with the baking soda, bubbles of CO2 gas form. After a few seconds, the air in the beaker is replaced by 300.-milliliters of CO2 gas, causing the candle flame to go out. The density of CO2 gas is 0.0018 grams per milliliter at room temperature.
Determine the mass of the CO2 gas that replaced the air in the beaker.
(a)
At 298 K and 1 atm, which noble gas has the lowest density?
Ne
Kr
Xe
Rn
Based on the diagram provided, reorder the materials in the density column from left to right in order of increasing density.
D
C
B
A
Based on the diagram provided, reorder the materials in the density column from left to right in order of decreasing density.
A
B
C
D
Base your answer to the question below on the diagram provided.
Which material in the density column has the greatest density?
A
B
C
D
Base your answer to the question below on the diagram provided.
Which material in the density column has the lowest density?
A
B
C
D
Base your answer to the question below on the diagram provided.
The density of substance C is ...
greater than substance A and less than substance D.
greater than substance D and less than substance B.
greater than substance B and less than substance D.
greater than substance A and less than substance B.
Based on the diagram provided, reorder the materials in the density column from left to right in order of increasing density.
D
A
B
C
Based on the diagram provided, reorder the materials in the density column from left to right in order of decreasing density.
C
B
A
D
Base your answer to the question below on the diagram provided.
Which material in the density column has the greatest density?
A
B
C
D
Base your answer to the question below on the diagram provided.
Which material in the density column has the lowest density?
A
B
C
D
Base your answer to the question below on the diagram provided.
The density of substance A is ...
greater than substance D and less than substance B.
greater than substance C and less than substance B.
greater than substance B and less than substance D.
greater than substance C and less than substance D.
Based on the diagram provided, reorder the materials in the density column from left to right in order of increasing density.
Z
W
Y
X
Based on the diagram provided, reorder the materials in the density column from left to right in order of decreasing density.
X
Y
W
Z
Base your answer to the question below on the diagram provided.
Which material in the density column has the greatest density?
X
Y
Z
W
Base your answer to the question below on the diagram provided.
The density of substance Y is ...
greater than substance W and less than substance X.
greater than substance Z and less than substance W.
greater than substance X and less than substance W.
greater than substance X and less than substance Z.
Base your answer to the question below on the diagram provided.
Which material in the density column has the lowest density?
X
Y
Z
W
In a laboratory activity, the density of a sample of vanadium is determined to be 6.9 g/cm3 at room temperature. What is the percent error for the determined value?
0.15%
0.87%
13%
15%
In a laboratory activity, the density of a sample of vanadium is determined to be 6.6 g/cm3 at room temperature. What is the percent error for the determined value?
0.15%
0.082%
8.2%
15%
In the late 1800s, Dmitri Mendeleev developed a periodic table of the elements known at that time. Based on the pattern in his periodic table, he was able to predict properties of some elements that had not yet been discovered. Information about two of these elements is shown in the table below.
Determine the percent error of Mendeleev's predicted density of eka-silicon (Es).
(a)
A student measures the mass and volume of a sample of copper at room temperature and 101.3 kPa. The mass is 48.9 grams and the volume is 5.00 cubic centimeters. The student calculates the density of the sample. What is the percent error of the student's calculated density?
7.47%
8.41%
9.15%
10.2%
A student measures the mass and volume of a sample of copper at room temperature and 101.3 kPa. The mass is 48.2 grams and the volume is 5.00 cubic centimeters. The student calculates the density of the sample. What is the percent error of the student's calculated density?
7.59%
8.41%
9.15%
10.2%
Base your answer to the question below on Table S of the NYSCRT and your knowledge of chemistry.
Match each element to its density at standard temperature and pressure.
Hydrogen
0.000082 g/cm3
Mercury
13.5336 g/cm3
Iron
7.87 g/cm3
Potassium
0.89 g/cm3
Base your answer to the question below on Table S of the NYSCRT and your knowledge of chemistry.
Match each element to its density at standard temperature and pressure.
Nitrogen
0.001145 g/cm3
Oxygen
0.001308 g/cm3
Chlorine
0.002898 g/cm3
Carbon
-
Base your answer to the question below on Table S of the NYSCRT and your knowledge of chemistry.
Match each element to its density at standard temperature and pressure.
Hydrogen
0.000082 g/cm3
Lithium
0.534 g/cm3
Sodium
0.971 g/cm3
Potassium
0.89 g/cm3
The densities for two forms of carbon at room temperature are listed in the table below.
A student calculated the density of a sample of graphite to be 2.3 g/cm3. Determine the student's percent error for the density of graphite.
(a)
The graph below shows the volume and the mass of four different substances at STP.
Which of the four substances has the lowest density?
A
B
C
D
The graph below shows the volume and the mass of four different substances at STP.
Which of the four substances has the greatest density?
A
B
C
D
An aluminum sample has a mass of 80.01 g and a density of 2.70 g/cm3. According to the data, to what number of significant figures should the calculated volume of the aluminum sample be expressed?
1
2
3
4
The mass of a solid is 3.60 grams and its volume is 1.8 cubic centimeters. What is the density of the solid, expressed to the correct number of significant figures?
2 g/cm3
2.0 g/cm3
0.5 g/cm3
0.50 g/cm3
Calculate the volume of a tin block that has a mass of 95.04 grams at STP.
(a)
Calculate the volume of a lead block that has a mass of 95.04 grams at STP.
(a)
Calculate the volume of a silicon block that has a mass of 95.04 grams at STP.
(a)
Calculate the volume of a germanium block that has a mass of 95 grams at STP.
(a)
A sample of an element has a mass of 34.261 grams and a volume of 3.8 cubic centimeters. To which number of significant figures should the calculated density of the sample be expressed?
5
2
3
4
A sample of an element has a mass of 34.261 grams and a volume of 3.80 cubic centimeters. To which number of significant figures should the calculated density of the sample be expressed?
5
2
3
4
At standard temperature and pressure, a 7.43-gram sample of an element has a volume of 1.65 cubic centimeters. The sample is most likely
Ta
Tc
Te
Ti
At standard temperature and pressure, a 18.98-gram sample of an element has a volume of 1.65 cubic centimeters. The sample is most likely
Ta
Tc
Te
Ti
Which element has the greatest density?
scandium
selenium
silicon
sodium
Which element has the greatest density?
barium
beryllium
magnesium
radium
Which element has the greatest density?
calcium
carbon
chlorine
copper
A 10.0-gram sample of which element has the smallest volume at STP?
aluminum
magnesium
titanium
zinc
Archimedes (287-212 BC), a Greek inventor and mathematician, made several discoveries important to science today. According to a legend, Hiero, the king of Syracuse, commanded Archimedes to find out if the royal crown consisted of a mixture of gold, tin, and copper. Archimedes measured the mass of the crown and the total amount of water displaced by the crown when it was completely submerged. He repeated the procedure using individual samples, one of gold, one of tin, and one of copper. Archimedes was able to determine that the crown was not made entirely of gold without damaging it.
Determine the volume of a 50.-gram sample of gold at standard temperature and pressure (STP).
(a)
