Quiz 2 Chapter 2 (Measurements)
Which of the following temperatures is the coldest?
100 K
How many millimeters are there in a liter?
1000
Mercury (Hg) in a thermometer has a mass of 700.0 mg Hg and a volume of 0.0510 mL Hg. What is the density of mercury in g/mL Hg?
13.7
Which one of the following is the longest length? (1 ft = 12 in, 1 in = 2.54 cm)
16.0 Ft
A chemist has a block of copper metal (density is 8.96 g/mL). They drop the metal into a graduated cylinder containing water, and find the volume change is 3.10 mL. What is the mass of the block, in grams?
27.8
Which of the following quantities represents the greatest volume?
3.0 X 10^4 deciliters
Convert 113.4 gallons to deciliters. (3.8754 liters= 1 gallon)
4.293 X 10^3 dl
You have a sample of each of the following five metals, with the mass and density of each sample given. Which sample has the largest volume?
Aluminum, mass = 135 g, d = 2.7 g/cm³
Which of the following represents the correct conversion factor between grams and pounds? 1) 453.6 pounds per gram II) 453.6 grams per pound III)1 gram per 453.6 pounds
B) II
Three blocks of the same shape and size are placed in front of you. Block A has a mass of 3.0 g, block B is 5.0 g, and block C is 10.0 g. Which has the higher density?
Block C
The density of water is approximately 1g / c * m ^ 3 . Which of these objects will float on water?
Cedar wood block, d= 0.380 g/ cm³
A chemist is trying to identify an unknown metal, and finds that 25.0 cm³ of the substance has a mass of 224.43 g at 20°C. Which of the following metals is it?
Copper, d = 8.98 g/cm³
Which of the following metric prefixes corresponds to 10 to the power of 6?
Mega
How do you convert a Farenheit temperature to Celsius?
Subtract by 32, then multiply by 5/9
A temperature of 103°F or higher is considered a medical emergency. Patient A comes in with a temperature of 38°C. Patient B comes in with a temperature of 313 K. Is either patient having a medical emergency?
Yes, patient B only.
Which of the following metric prefixes corresponds to 10 to the -3 power?
milli-
Kelvin is the SI unit for which physical quantity?
temperature
A chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume change is 4.1 mL. If the metal weighs 2.5 g, what is the density of the metal in g/mL?
0.6
A sample of blood is found to cont 64.5 micrograms of valproic acid. How many milligrams of valproic acid do this blood sample contain?
0.0645
A chemist has a block of aluminum metal (density is 2.7 g/mL). The block weighs 1.1 g. What is the volume, in mL, of the aluminum block?
0.41
