Identifying Sig Figs
Rounding Sig Figs
Math with Sig Figs
Unit Conversions
Grab Bag
100
1.00
3
100
Round to 2 sig figs - 2.004
2.0
100
1.254 + 2.01
3.26
100
Convert 340 g to kg
0.340 kg
100
What is the SI unit for mass?
Kg or g
200
2,000,001
7
200
Round to 3 sig figs - 0.002470
0.00247
200
5 - 2.1
3
200
Convert 34 mL to L
0.034 L
200
What would be the correct measurement based on the graduated cylinder below?
21.6mL
300
.00042
2
300
Round to 1 sig fig - 4,705
5,000
300
2.5 x 301
750
300
Convert 33 km to cm
3300000 cm
300
Physical or Chemical property?
Combining Baking Soda and Vinegar forms bubbles and heats up
Chemical
400
406.230
6
400
176, when rounded to ____ sig figs changes to 200.
One
400
1.05 x 2.9
3.0
400
Convert 701,000 seconds to weeks
1.16 weeks
400
Accurate or Precise? Both or Neither?
Actual Volume of water in a graduated cylinder: 15mL
Readings (in mL):
18.1, 18.2, 17.9, 17.8, 18.0, 17.7
Precise, but not accurate?
500
0.00020
2
500
0.0930, when rounded to _____ sig figs changes to 0.093
Two
500
104 / .05 =
2,000
500
Convert 0.052 miles to centimeters (1 mile= 1.609 km)
8400 (rounded to sig figs)
500
If an uneven rock was dropped into a graduated cylinder, and the water level in the cylinder rose from 4.80 mL to 5.60 mL. What would be the density of the rock, if the rocks mass was 2.50g?
3.1 g/mL