Measured numbers and Sig. Figs. (1)
Measured numbers and Sig. Figs. (2)
Sig. Figs. in Calculations
Prefixes and Equalities
Writing Conversion Factors
100
There are approximately 100 Trillion bacteria living in your intestines right now. What is this number in scientific notation?
1 x 1014
100
How many sig figs does 3,240,000 miles have?
What is 3 significant figures
100
What is 800 x 4.32?
What is 3000?
100
What prefix can be used for 10-6 g?
What is a microgram
100
Give the equality and two conversion factors for the following:
A Toyota Prius can go 56 miles on 1 gallon of gas
56 mi = 1 gal
56 mi/ 1 gal
1 gal/ 56 mi
200
Double Jeopardy!
What is the number and place value of the uncertain digit in this measurement? 124.8
What is 8 in the tenths place
200
How many sig figs are in the measurement 1,000,080 grams?
What is 6 significant figures
200
What is 2.523 g + 165.2 g?
What is 167.7 g
200
500 mg = _____ g
What is 0.5 grams
200
Triple Jeopardy!
Give the equality and two conversion factors for the following:
Sterling silver is 93% silver by mass
93 g of silver = 100 g of sterling
93 g silver/100 g sterling
100 g sterling/93 g silver
300
Give the correct measurement for the following mass:
What is 142.0 g
300
Double Jeopardy
How many sig figs does 0.00040800 have?
What is 5 significant figures
300
What is 5,130.40 kg -2.200 kg?
What is 5,128.20 kg
300
1 Mg = _____________mg
What is 1 x 109 mg
300
8.35 meters x 3.996 meters
What is 33.4 square meters (m2)
400
What is the correct milliliter measurement for this volume:
What is 6.60 mL
400
Double Jeopardy!
245,860,000,000 Place in Scientific Notation
2.4586 x 1011
400
What is 800.2 m2 / 311 m?
What is 2.57 m
400
2.5 km = ______ cm
What is 250,000 cm
400
Double Jeopardy!
7 centimeters x 1.86 centimeters x 0.002 centimeters
What is 0.03 cubic centimeters (CC or cm3)
500
Double Jeopardy!
The average temperature of space is 2.7 Kelvin (K). What is this temperature in Fahrenheit (Round to the nearest ones place)
K = (T°C + 273.15)
T°F = (1.8)T°C + 32
What is - 454.9 degrees Fahrenheit
500
What is 3,200,000. meters in scientific notation?
What is 3.200000 x 106 meters
500
Double Jeopardy!
A chemist wants to dilute a solution that is 125.0 mL. He needs to add 4 times this volume in water to do so. Calculate the amount of water needed to the correct number of significant figures.
What is 500.0 mL of water
500
A container holds 0.500 qt of liquid. How many milliliters of solution will it hold?
1 qt = 946.4 mL
What is 473 mL
500
Double Jeopardy!
Wine is 12% alcohol by volume. How many milliliters of alcohol are in a 0.750-L bottle of wine?
What is 90. mL