Sig Figs
107.2 cm
What is 4 sig figs?
When you add or subtract measured values, you round to the _____.
172 cg
What is 1.72 x 102 cg?
3.69 x 10-2 ml
What is 0.0369 ml?
612 g = ? mg
What is 612,000 mg?
0.50200 nm
What is 5 sig figs?
17.65 g - 4.337 g
What is 13.31 g?
0.502 moles
What is 5.02 x 10-1 moles?
1.56 x 104 sec
What is 15600 sec?
A barrel of oil is exactly 42 gal. How many liters of oil are in the barrel? Use 1 gal = 3.785 L and round to proper sig figs.
What is 160 L?
Round 0.00023350 L to 3 significant figures.
What is 0.000234 L?
180.156 kg + 342.4 kg
What is 522.6 kg?
123,453 atoms
What is 1.23453 x 105 atoms?
2.59 x 101 lbs
What is 25.9 lbs?
Is a 197-lb weight lifter light enough to compete in a class limited to those weighing 90 kg or less? Use 1 lb = 0.454 kg; show your calculation and answer yes/no
What is 89.4 kg? And what is Yes?
Round 77.0653 miles to three significant figures.
What is 77.1?
(3.50 x 102 m)(6.450 x 1010 m)
What is 2.26 x 1013 m2?
310,000,000,000 m
What is 3.1 x 1011 m?
7.36 x 109 mm
What is 7,360,000,000 mm?
What is the mass of 6.00 cm3 of mercury (density = 13.5939 g/cm3)? (use D=M/V)
What is 81.6 g?
Round the distance to the moon, 384,400 km, to 2 significant figures and use scientific notation.
What is 3.8 x 105 km?
(4.4 x 107 g)/(2.25 x 105 ml)
What is 2.0 x 102 g/ml?
0.000982 x 10-3 kg (note: this is not proper scientific notation, so please fix it)
What is 9.82 x 10-7 kg?
4.59 x 10-7 tons
What is 0.000000459 tons
What is the volume of 25 g of iodine (density = 4.93 g/cm3)?
What is 5.1 ml?