Prefixes
10^-3
milli
3.45cm
You have a rock with a volume of 30cm^3 and a mass of 60g. What is its density?
2.0 g/cm^3
How many sig figs are there in the measured value of 1.008?
4
Exact numbers ______.
1. have defined values
2. determined by counting
10^-6
micro
150mL
You have a rock with a density of 3.0g/cm^3 and a volume of 15cm^3. What is its mass?
45g
calculate the answer to the appropriate number of significant figures.
246.24 + 238.278 + 98.3 =
582.8
Quantities derived from measurements other than counting are _____.
uncertain
10^-9
nano
2L is how many dm^3?
2
Which rock is more dense?
the first one, its density is 3.0g/cm^3
Calculate the answer to the appropriate number of significant figures.
43.678 x 64.1 =
2.80 x 10^3
Uncertain numbers are an ____.
estimation
10^-12
pico
Convert 56.1nm to cm.
5.61 x 10^-6
Beeswax has a density of 0.96g/cm^3 at 25C and 1atm pressure. Calculate the mass in grams of 5.0cm^3 of beeswax at 25C and 1atm.
4.8g
Calculate the answer to the appropriate number of significant figures.
4278/ 1.006 =
4252
How many degrees of uncertainty would you have when measuring the volume of a liquid in a 25ml graduated cylinder? Give an example.
1 uncertain digit, 15.2ml
10^-15
femto
convert 9.63 fL to TL.
9.63 x 10^-27 teraliters
Milk has a density of 1.09g/mL. Calculate the mass in grams (g) of 1L of milk.
1030g
Trailing zeros are only significant when ____.
There is a decimal point at the end of a number or the zero is to the right of a decimal point.
A 50mL beaker has labels at every 10ml. Would 42.5 be a correct measurement?
No