CHEM 104 FINAL SOLUTION MANUAL FULLY SOLVED LATEST VERSION 2025
1) Significant figures are important because they indicate
A) the number of measurements.
B) the number of digits on a calculator.
C) the accuracy of the conversion factor.
D) the exact numbers in a measurement.
E) the certain and estimated digits in a measurement. - Answers E) the certain and estimated digits in a
measurement.
2) The number of significant figures in the measurement of 45.030 mm is
A) none.
B) three.
C) four.
D) five.
E) six. - Answers D) five.
3) Which of the following examples illustrates a number that is correctly rounded to three significant
figures?
A) 20.0332 grams to 20.0 grams
B) 4.05438 grams to 4.054 grams
C) 103.692 grams to 103.7 grams
D) 109,526 grams to 109 500 grams
E) 0.03954 grams to 0.040 grams - Answers A) 20.0332 grams to 20.0 grams
4) What is the correct answer for the calculation of a volume (in mL) with measured numbers?
28.58/16x8.02
A) 0.22 mL
B) 14 mL
C) 0.223 mL
D) 14.3 mL
,E) 57 mL - Answers A) 0.22 mL
5) The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is A) 10 g.
B) 13 g.
C) 13.0 g.
D) 13.071 g.
E) 13.1 g. - Answers B) 13 g.
6) Which of the following measurements are NOT equivalent?
A) 183 L = 0.183 kL
B) 24 dL = 2.4 L
C) 84 cm = 8.4 mm
D) 25 mg = 0.025 g
E) 150. ms = 0.150 s - Answers C) 84 cm = 8.4 mm
7) Which of the following is the largest unit?
A) millimeter
B) kilometer
C) micrometer
D) decimeter
E) meter - Answers B) kilometer
8) How many kilograms are in 30.4 lb? 1 kg = 2.20 lb
A) 66.88 kg
B) 66.9 kg
C) 13.8 kg
D) 67 kg
E) 14 kg - Answers C) 13.8 kg
9) A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How
many milliliters of the suspension are required?
, A) 6.3 mL
B) 0.0063 mL
C) 0.0025 mL
D) 3.0 mL
E) 2.5 mL - Answers E) 2.5 mL
10) A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume
of 77.0 mL. What is the density of the gold?
A) 10.4 g/mL
B) 0.0518 g/mL
C) 19.3 g/mL
D) 1.00 g/mL
E) 6.77 g/mL - Answers C) 19.3 g/mL
11) A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?
A) 1.33 g/mL
B) 1.00 g/mL
C) 1330 g/mL
D) 0.663 g/mL
E) 0.752 g/mL - Answers A) 1.33 g/mL
12) What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?
A) 42 g
B) 67.1 g
C) 53 g
D) 41.9 g
E) 67 g - Answers A) 42 g
13) Blood is a(n)
A) compound.
1) Significant figures are important because they indicate
A) the number of measurements.
B) the number of digits on a calculator.
C) the accuracy of the conversion factor.
D) the exact numbers in a measurement.
E) the certain and estimated digits in a measurement. - Answers E) the certain and estimated digits in a
measurement.
2) The number of significant figures in the measurement of 45.030 mm is
A) none.
B) three.
C) four.
D) five.
E) six. - Answers D) five.
3) Which of the following examples illustrates a number that is correctly rounded to three significant
figures?
A) 20.0332 grams to 20.0 grams
B) 4.05438 grams to 4.054 grams
C) 103.692 grams to 103.7 grams
D) 109,526 grams to 109 500 grams
E) 0.03954 grams to 0.040 grams - Answers A) 20.0332 grams to 20.0 grams
4) What is the correct answer for the calculation of a volume (in mL) with measured numbers?
28.58/16x8.02
A) 0.22 mL
B) 14 mL
C) 0.223 mL
D) 14.3 mL
,E) 57 mL - Answers A) 0.22 mL
5) The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is A) 10 g.
B) 13 g.
C) 13.0 g.
D) 13.071 g.
E) 13.1 g. - Answers B) 13 g.
6) Which of the following measurements are NOT equivalent?
A) 183 L = 0.183 kL
B) 24 dL = 2.4 L
C) 84 cm = 8.4 mm
D) 25 mg = 0.025 g
E) 150. ms = 0.150 s - Answers C) 84 cm = 8.4 mm
7) Which of the following is the largest unit?
A) millimeter
B) kilometer
C) micrometer
D) decimeter
E) meter - Answers B) kilometer
8) How many kilograms are in 30.4 lb? 1 kg = 2.20 lb
A) 66.88 kg
B) 66.9 kg
C) 13.8 kg
D) 67 kg
E) 14 kg - Answers C) 13.8 kg
9) A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How
many milliliters of the suspension are required?
, A) 6.3 mL
B) 0.0063 mL
C) 0.0025 mL
D) 3.0 mL
E) 2.5 mL - Answers E) 2.5 mL
10) A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume
of 77.0 mL. What is the density of the gold?
A) 10.4 g/mL
B) 0.0518 g/mL
C) 19.3 g/mL
D) 1.00 g/mL
E) 6.77 g/mL - Answers C) 19.3 g/mL
11) A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?
A) 1.33 g/mL
B) 1.00 g/mL
C) 1330 g/mL
D) 0.663 g/mL
E) 0.752 g/mL - Answers A) 1.33 g/mL
12) What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?
A) 42 g
B) 67.1 g
C) 53 g
D) 41.9 g
E) 67 g - Answers A) 42 g
13) Blood is a(n)
A) compound.
