Chem 103- Prefixes, Conversion and sig figs
list the prefixes (and their symbols) in increasing size
pico (p), angstrom (Å), nano (n), micro (µ), milli (m), centi (c), kilo (k), mega (M)
how many cubic meters are in 6.25 E 5 cubic centimeters?
0.625 m^3
what is the volume of 3.25 cg of mercury (density= 13/56 g/cm^3)?
2.40E-3 cm^3
1ml= __cm^3
1 cm^3
List the four rules for significant figures
1. all nonzeros are significant 2. zeroes between nonzeroes are significant 3. leading zeroes are not significant 4. trailing zeroes are significant with a decimal point (not significant w/o)
1 m= ___ angstrom
10^10 Å
1m= ___ picometers
10^12 pm
1m= ___centimeters
10^2 cm
___m= 1km
10^3 m
1m=___ milimeters
10^3 mm
___m= 1Mm
10^6 m
1m=___ micrometers
10^6 µm
1m= ___nanometers
10^9 nm
convert 56.32 µm into nanometers
56320 nm
what is the mass in grams of a 150lb person (1kg=2.2lbs)?
68,000 grams
SAE I0W=40 engine oil has a density of 0.857g/mL. What is the density in kg/m^3?
857 kg/m^3
rule for significant figures in addition and subtraction
number of decimal places in the result will be the same as the measurement with the fewest decimal places
rule for significant figures in multiplication and division
number of sig figs in the result will be the same as the measurement with the fewest sig figs