CHEM 101- Chapters 1 & 2
For the equation 2x + 14= -2, x equals A) 8 B) -8 C) 16 D) -16 E) 6
-8
The product of (-4) x (-5) is A) -20 B) +20 C) -1 D) +1 E) 0
+20
For the equation 4x (-3)/-2= _____________ A) -6 B) +6 C) -12 D) +12 E) 4
+6
For the equation -10 - (-4) = ________. A) 6 B) -6 C) 14 D) -14 E) 4
-6
5.21 cm is the same length as ________________. A) 0.0521 m B) 52.1 dm C) 5.21 mm D) 0.00521 km E) 5210 m
0.0521 m
What is the metric relationship between grams and micrograms? A) 1 g = 100 ug B) 1 g = 1000000 ug C) 1 g = 0.000001 ug D) 1 g = 1000 ug E) 1 g = 0.001 ug
1 g = 1000000 ug
A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is _________. A) 1.014 g/mL B) 0,986 g/L C) 1.01 D) 0.986 E) 50.7
1.01
Density of solution is 1.18 g/ML. It's specific gravity is ____________. A) 11.8 B) 0.118 C) 0.847 D) 1.18 E) 1.2
1.18
A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid? A) 1.00 g/mL B) 1.33 g/mL C) 0.752 g/mL D) 1330 g/mL E) 0.663 g/mL
1.33 g/mL
According to the United States Food and Drug Administration, the recommended daily requirement of protein is 44g. This is _____________ of protein. A) 1248.5 oz B) 320,000 oz C) 1.6 oz D) 0.0605 oz E) 150,000 oz
1.6 oz
What is the density of a substance with a mass of 45.00 g and a volume of 26.4 mL? A) 1.70 g/mL B) 1.7 g/mL C) 0.59 g/mL D) 0.587 g/mL E) 45.0 g/mL
1.70 g/mL
What is the answer, with the correct number of decimal places, for this problem? 4.392 g + 102.40 g + 2.51 g = A) 109.302 g B) 109 g C) 109.3 g D) 109.30 g E) 110 g
109.30 g
What is the conversion factor for the relationship between millimeters and centimeters? A) 1mm/1cm B) 10mm/1cm C) 1cm/1mm D) 100mm/1cm E) 10cm/1mm
10mm/1cm
The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is __________________-. A) 13.071 g B) 13 g C) 13.0 g D) 10 g E) 13.1 g
13 g
How many kilograms are in 30.4 pounds? A) 13.8 kg B) 14 kg C) 67 kg D) 66.88 kg E) 66.9 kg
13.8 kg
How many centimeters are there in 57.0 inches? A) 22 cm B) 0.0445 cm C) 145 cm D) 22.4 cm E) 140 cm
145 cm
Which of the following numbers contains the designated correct number of significant figures? A) 0.04300 5 significant B) 0.003202 2 significant C) 156000 3 significant D) 1.04 2 significant E) 3.0650 4 significant
156000 3 significant
A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is _____________. A) 19 mg B) 53 mg C) 1.6 mg D) 5.0 mg E) 0.59 mg
19 mg
What is 6.5 m converted to inches? A) 1700 in B) 1651 in C) 39 in D) 260 in E) 255.9 in
260 in
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) 6.77 g/mL C) 1.00 g/mL D) 0.0518 g/mL E) 19.3 g/mL
19.3 g/mL
For the equation 4x + 2 = 10, x equals A) 8 B) 12 C) 3 D) 2 E) -2
2
What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL? A) 0.0230 kg B) 2.30 kg C) 1.15 kg D) 0.0150 kg E) 0.575 kg
2.30 kg
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) 0.0025 mL B) 3.0 mL C) 2.5 mL D) 6.3 mL E) 0.0063 mL
2.5 mL
A conversion factor set up correctly to convert 15 inches to centimeters is ______________. A) 100 cm/1 m B) 1 inch/ 2.54 cm C) 1 cm/ 10 mm D) 2.54 cm/ 1 inch E) 10cm/ 1 inch
2.54 cm/1 inch
Which of the following examples illustrates a number that is correctly rounded to three significant figures? A) 4.5428 g to 4.054 g B) 0.03954 g to 0.040 g C) 103.692 g to 103.7 g D) 109526 g to 109500 g E) 20.0332 g to 20.0 g
20.0332 g to 20.0 g
Which of the following conversion factors is a measured number? A) 10 cm/dm B) 12 in/ft C) 16 oz/lb D) 25 miles/gallon E) 12 eggs/dozen
25 miles/gallon
Mercury has a specific gravity of 13.6. How many milliliters of mercury have a mass of 0.35 kg? A) 0.0257 mL B) 0.026 mL C) 25.7 mL D) 26 mL E) 4760 mL
26 mL
When 2610 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is ______________. A) 2621.92 B) 2621.9 C) 2621 D) 2622 E) 2600
2622
12 is what percent of 36? A) 3% B) 30% C) 33% D) 330% E) 12%
33%
Diamond has a density of 3.52 g/mL. What is the volume in cubic centimeters of a diamond with a mass of 15.1 g? A) 4.3 cm3 B) 4.29 cm3 C) 0.233 cm3 D) 53 cm3 E) 53.2 cm3
4.29 cm3
How many liters of soft drink are there in 5.25 qt? A) 4950 L B) 55.7 L C) 4.95 L D) 5.57 L E) 5.0 L
4.95 L
A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported? A) 423 B) 424 C) 1.7420 D) 423.6 E) 423.7
424
1.00 pint of milk has a volume of how many milliliters? A) 473 mL B) 530 mL C) 1000 mL D) 1890 mL E) 106 mL
473 mL
Which of the following measurements has three significant figures? A) 0.005 m B) 510 m C) 0.510 m D) 0.051 m E) 5100 m
510 m
How many pounds are in 3.5 kg? A) 7.7 lb B) 1.59 lb C) 0.629 lb D) 1.6 lb E) 7.70 lb
7.7 lb
A piece of iron with a mass of 119 g is placed in a graduated cylinder, where the water level is to 57 mL. The water level rises to 72 mL. What is the density of the iron? A) 0.13 g/mL B) 1.7 g/mL C) 2.1 g/mL D) 7.9 g/mL E) 24 g/mL
7.9 g/mL
Which of the following measurements are not equivalent? A) 25 mg = 0.025 g B) 183 L = 0.183 kL C) 150 ms = 0.150 s D) 84 cm = 8.4 mm E) 24 dL = 2.4 L
84 cm = 8.4 mm
9.31 g is the same mass as ________________. A) 931 ug B) 931 kg C) 93.1 cg D) 9310 mg E) 0.0931 dg
9310 mg
T/F- 1 mL is equivalent to 1000 L
False
T/F- 1 mL is equivalent to 1000 mg
False
T/F- 100 cm is the same length as 254 inches
False
T/F- 2x + 9 = -3 x= 3
False
T/F- A cubic centimeter is a unit of length
False
T/F- A ug is larger than a mg.
False
T/F- In the number 123.45, the digit 5 is in the hundreds place
False
T/F- The basic unit of mass in the metric system is the pound
False
T/F- The density of water is 1 kg/mL
False
T/F- The number 0.0500 has four significant figures
False
T/F- The number 6.00 x 10^4 has one significant figure
False
-2 x 6/-3= 4
True
T/F- An animal shelter has 12 dogs and 8 cats. Cats are 40% of the animals.
True
T/F- An object with a mass of 56 g and a volume of 22 mL has a density of 2.5 g/mL.
True
T/F- If a negative number is divided by another negative number, the answer will be a positive number
True
T/F- Specific Gravity has no units
True
T/F- The liter is a unit of volume in the metric system
True
T/F- The number 650,000 has two significant figures
True
T/F- There are 1000 ug in a mg
True
T/F- When the measured number 0.0090 is multiplied by the measure number 87.10, the answer has two significant figures.
True
T/F- When the measured number 675 is added to the measured number 87.10, the answer should be rounded to the ones place.
True
Which one of the following substances will float in gasoline, which has a density of 0.74 g/mL? A) table salt (D= 2.15 g/mL) B) balsa wood (D= 0.16 g/mL) C) sugar (D= 1.59 g/mL) D) aluminum (D= 2.70 g/mL) E) mercury (D= 13.6 g/mL)
balsa wood (D= 0.16 g/mL)
A value of 36 mL is a measure of ______________. A) density B) mass C) temperature D) volume E) length
density
The ratio of the mass of a substance to its volume is the _______________. A) specific gravity B) density C) buoyancy D) weight E) conversion factor
density
The number of significant figures in the measurement 45.030 mm is _____________. A) none B) three C) four D) five E) six
five
In the number 12.345, the 4 is in the ___________ place. A) tens B) ones C) tenths D) hundredths E) thousandths
hundredths
Which of the following is the basic unit of mass in the metric system? A) milliliter B) centimeter C) kilogram D) Celsius E) meter
kilogram
Which of the following is the largest unit? A) millimeter B) micrometer C) meter D) decimeter E) kilometer
kilometer
A value of 345 mm is a measure of ____________. A) density B) mass C) temperature D) volume E) length
length
Which of the following is the basic unit of volume in the metric system? A) liter B) kilogram C) meter D) centimeter E) gram
liter
Which of the following is the smallest unit? A) gram B) milligram C) kilogram D) decigram E) microgram
microgram
The cubic centimeter (cm3 or cc) has the same volume as ___________. A) cubic inch B) cubic liter C) milliliter D) centimeter E) cubic decimeter
milliliter
In which of the following is the metric unit paired with its correct abbreviation? A) microgram/mg B) milliliter/mL C) centimeter/km D) kilogram/cg E) gram/gm
milliliter/mL
A value of 25 C is a measurement of _________. A) length B) volume C) temperature D) mass E) density
temperature
In the number 12,345, the 1 is in the _________ place. A) tens B) ones C) tenths D) hundredths E) thousandths
tens
How many significant figures are in the number 0.00208? A) six B) two C) three D) four E) five
three
The amount of space occupied by a substance is its ______. A) mass B) density C) weight D) length E) volume
volume
The measurement of the gravitational pull on an object is its _____________. A) volume B) weight C) mass D) length E) size
weight