Sig Figs/Scientific Notation
How many sig figs?
0.0000450
3 sig figs
Convert the following temperature to Fahrenheit:
325 K
125 degrees F
Convert the following:
557 cm to in
219 in
Convert the following:
2.89 x 104 nm3 to m3
2.89 x 10-23 m3
Determine the density of a liquid with a mass of 366 g and a volume of 26.9 mL.
13.6 g/mL
Write this number in scientific notation:
4,955,000
4.955 x 106
Convert the following temperature to K:
475 degrees F
519 K
Convert:
648 mi to km
1040 km or 1.04 x 103 km
Convert:
249 dm3 to cm3
249,000 cm3 or 2.49 x 105 cm3
The density of ethanol, the alcohol in alcoholic beverages, is 0.789 g/mL. Determine the mass (in grams) of ethanol that occupies 250.0 mL.
197 g
Write this number in scientific notation:
0.000000000276
2.76 x 10-12
Convert:
14,339 cm to m
143.39 m
Convert:
311 gal to L
1180 L or 1.18 x 103 L
Convert:
32.7 nm2 to km2
3.27 x 10-23 km2
If ethanol has a density of 0.789 g/mL, determine the volume (in mL) of a 250.0 g sample of ethanol.
317 mL
Perform this calculation and report the answer with the correct number of sig figs:
595.101 + 0.2325
595.334
Convert:
12 Mm to cm
1.2 x 109 cm
Convert:
23.6 kg to oz
832 oz
Convert:
39.6 mg/cm3 to g/m3
39600 g/m3 or 3.96 x 104 g/m3
The density of molten aluminum is 2.70 g/cm3. Determine the mass (in g) of molten aluminum that occupies 685 cm3.
1850 g or 1.85 x 103 g
Perform the following calculation and report the answer with the correct number of sig figs:
5.1/89.3
0.057
Convert:
9.42 ng to kg
9.42 x 10-12 kg
Convert:
48.6 mi to m
78200 m or 7.82 x 104 m
Convert:
9.8 mm/ns2 to m/s2
9.8 x 1015 m/s2
If a liquid sample has a mass of 1.73 x 109 mg and a volume of 1.99 m3, what is the liquid's density (in g/mL)?
0.869 g/mL