Lab Lingo
Sig Fig Newtons
Measuring Matters
Calculate THIS!
Tool Time.
100
What type of observation is: "The salt popped out of the dish like popcorn."
Qualitative observation
100
4,200 has _____ significant figures
What is 2
100
The units used for a graduated cylinder
Milliliters (mL)
100
31.0 cm x 2.041 cm x 15.00 cm =
949 cm3
100
Used to precisely measure volume of a liquid
Graduated cylinder
200
Quantitative way to determine how close you were to a desired value
Percent error
200
0.0032400 has ______ significant figures
What is 5 significant figures
200
The units used for a digital balance
Grams
200
7.05 g - 6.2 g =
0.9 g
200
This tool is used to estimate the volume of liquids
Beaker
300
How close you are to a desired value
Accuracy
300
Round 8,972 km to 1 significant figure
9,000 km
300
What is the length?
1110-1130
300
1.32 x104 cm + 3.0 x10-3 cm =
(answer in scientific notation)
1.3 x104 cm
300
The SI unit for mass
grams (g)
400
_____________ are the digits used to signal the level of precision of a measuring tool
Significant figures
400
Round 0.076319 mL to 2 significant figures
0.076 mL
400
What is the mass on this triple beam balance?
25.7-25.9 g
400
3.50 g /2x10-2 mL =
200 g/mL
400
This tool is used to stir chemicals.
Glass stir rod
500
This is the name of the "U" formed when measuring liquid in a graduated cylinder.
Meniscus
500
3.2531 -2,373,916,021 would have a final answer with how many decimal places?
0
500
What would be the measurement of this graduated cylinder?
38.0 mL
500
An experimental measurement was taken of 10.4 mL and the actual volume was 9.7 mL. Calculate the percent error.
7.2%
500
Used to observe multiple chemical reactions at once
Well plate