Chemistry 51 - Fundamentals of Chemistry » Fall 2021 » Experiment 1 Math Review

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Question #1
Write the number of significant figures for each of the following measurements: 1.498 m
A.   3
B.   4
C.   1
Question #2
Write the number of significant figures for each of the following measurements: 8.0335 in
A.   3
B.   1
C.   5
Question #3
Write the number of significant figures for each of the following measurements: 0.05587 g
A.   4
B.   3
C.   5
Question #4
Write the number of significant figures for each of the following measurements: 0.00058900 mm
A.   3
B.   5
C.   8
Question #5
Write the number of significant figures for each of the following measurements: 350000 kg
A.   6
B.   4
C.   2
Question #6
Write the number of significant figures for each of the following measurements: 248.3 lb
A.   1
B.   4
C.   3
Question #7
Write the number of significant figures for each of the following measurements: 1.40082 g
A.   6
B.   5
C.   1
Question #8
Write the number of significant figures for each of the following measurements: 0.00058900 mm
A.   5
B.   8
C.   3
Question #9
Write the number of significant figures for each of the following measurements: 0.35 kg
A.   2
B.   3
C.   1
Question #10
Write the number of significant figures for each of the following measurements: 820300 kg
A.   3
B.   4
C.   6
Question #11
Compute the following. Assume all numbers are measurements (hint: use significant figure rules). (6.02×1023)(8.65×104)=(6.02×1023)(8.65×104)= For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   5.21e+28
B.   5.21e+23
C.   5.20e+28
Question #12
Compute the following. Assume all numbers are measurements (hint: use significant figure rules). 5.6×1028.9×10−3=5.6×1028.9×10−3= For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   61,000
B.   63,000
C.   60,000
Question #13
Compute the following. Assume all numbers are measurements (hint: use significant figure rules). (5.4×104)(2.2×107)4.5×105=(5.4×104)(2.2×107)4.5×105= For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   2,800,000
B.   2,000,000
C.   2,600,000
Question #14
Compute the following. Assume all numbers are measurements (hint: use significant figure rules). (6.02×1023)(−5.11×10−27)8.23×10−6=(6.02×1023)(−5.11×10−27)8.23×10−6= For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   -274
B.   -374
C.   374
Question #15
Compute the following. Assume all numbers are measurements (hint: use significant figure rules). (3.79×1014)(5.2×107)8.943×10−4(3.79×1014)(5.2×107)8.943×10−4 For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   3.2e+25
B.   2.0e+25
C.   2.2e+25
Question #16
Solve the following problem. Round your final answer to the correct number of significant figures. Determine the number of mm in 2400 m. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   2,400,000
B.   1,900,000
C.   2,100,000
Question #17
Solve the following problem. Round your final answer to the correct number of significant figures. Determine the number of m in 6300 mm. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   3.9
B.   6.3
C.   5.4
Question #18
Solve the following problem. Round your final answer to the correct number of significant figures. Determine the number of mm in 14.3 cm. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   133
B.   143
C.   123
Question #19
Solve the following problem. Round your final answer to the correct number of significant figures. Convert 3245 cm3 to liters. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   2.295
B.   3.354
C.   3.245
Question #20
Solve the following problem. Round your final answer to the correct number of significant figures. A metallurgist is making an alloy that consists of 874 g of chromium (Cr) and 4.52 kg of iron (Fe). Find the total mass of the mixture in kg. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   4.29
B.   5.39
C.   5.25
Question #21
Solve the following problem. Round your final answer to the correct number of significant figures. How many mL of water (H2O) will it take to fill a 2.00 L bottle that already contains 1.25 L of H2O? For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   810
B.   730
C.   750
Question #22
Solve the following problem. Round your final answer to the correct number of significant figures. The density of lead (Pb) is 11.34 g/cm3. Find the density of Pb in kg/dm3. For scientific notation, please enter your answer in the following format: 6.02 X 1023 would be entered as 6.02e+23 6.626 X 10-34 would be entered as 6.626e-34
A.   11.34
B.   10.32
C.   9.12

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