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SI-chic Reading
Prefix Remix
1 Trillion Microphones = 1 Megaphone
Scientifically Significant
100
What piece of lab equipment is used to precisely measure the volume of a liquid?
Graduated Cylinder
100
How many fundamental units are there in the SI system?
7 Fundamental Units
100
How many centimeters are in a meter?
100
100
How many inches are in 8 feet?
Show your work!
96 inches
100
What do you do with the exponents when multiplying in scientific notation?
Add the exponents.
200
You need to break up a large amount of solid. What piece of lab equipment would be best suited for this task?
Mortar and pestle
200
What is the unit of measurement used for temperature in the SI system?
Kelvin
200
What is the base ten notation for the prefix Giga- (G)?
109
200
12,000 mg = ? kg
Show your work!
0.012 kg
200
How many sig figs are in this number:
1,435,200.00
9 sig figs
300
Rick is not following the correct lab safety protocol. What is he doing wrong and what should he do instead?
He is sniffing the chemicals and should be wafting them.
300
What is the SI fundamental unit used to measure brightness?
Luminosity
300
What does the prefix "da" stand for? Is 1 dam larger or smaller than 1 m?
Deca-
Larger (1 dam = 10 m)
300
If 1 cup of liquid = 240 mL, then how many μL is in 2 cups of water?
Show your work!
480,000 μL
300
Solve the following scientific notation problem:
(9.0 x 108) / (12 x 10-4)
Show your work!
7.5 x 1011
400
Why would you need to use a clay triangle?
To support a crucible when heating with a bunsen burner.
400
You are reading a lab report and see that when creating a solution, the chemists used 5 mol of HCl. This is a measure of which SI fundamental unit?
Amount of a given substance
400
How many picograms are in a gram?
1 trillion
(1,000,000,000,000)
400
A pharmacist is unsure what dose they should fill to ensure a patient takes a 35-mg tablet 4 times a day for one whole week. What is the total dosage they should prescribe?
Show your work!
980 mg
400
In what two situations is a zero considered significant?
1. Captive zero
2. Trailing zero after a decimal point
500
Name this piece of lab equipment and give at least 2 uses for it.
Watch glass
1. Evaporate small amounts of liquid
2. Weighing solids
3. Heating a small amount of substance
4. Covering a beaker
500
A scientist is running an experiment in the lab with 3 mol of unknown substance. They record the substance as having a mass of 50 grams, a length of 20 cm, a width of 8 cm, and a height of 3 cm.
The scientist wants to determine how long it takes for the substance to dissolve in water. They measure the temperature of the water at 298 Kelvin and when they place the unknown substance in the water, they record that it took 1.5 hours to dissolve.
Which measurement is not a part of the SI system and what should it be instead (number and unit)?
1.5 hours should be 5400 seconds
500
The prefix micro- is represented by this Greek letter: μ
What is the name of that Greek letter?
Mu
500
A car was pulled over for going 95 mi/hr. How fast was the car going in m/s (round to the nearest hundreth)?
(1 mi = 1.6 km)
Show your work!
42.22 m/s
500
Solve the problem and give your answer rounded to the correct number of sig figs:
(10.5 + 34.625) x 0.35
Show your work!
Calculator = 15.79375
Correct Sig Figs = 16