Prentice Hall Chemistry Chapter 3 Vocab.

Percent error equation

[(experimental value - accepted value) / accepted value] x 100%

measurement

a quantity that has both a number and a unit

scientific notation

a given number is written as the product of two numbers: a coefficient and 10 raised to a power

accuracy

a measure of how close a measurement comes to the actual or true value of whatever is measured

precision

a measure of how close a series of measurements are to one another

accepted value

the correct value based on reliable references

experimental value

the value measured in the lab

error

the different between the experimental value and the accepted value

SI units

meter, kilogram, the kelvin, second, and the mole

kelvin scale

Celsius + 273 = K

Density

Density = mass/volume