SigFig Rules
When are zero's NEVER significant in a number?
Leading zeros's are NEVER significant!
Who is the father of Chemistry?
Antione Laviosier
How many grams are in a KILOgram?
1,000!
Density=?
Density= Mass/Volume
Can one round to the correct number of SigFigs in the middle of a multi-step math problem?
NO! Never round in the middle of a math problem as it can affect the answer you get at the end!
Who created the atomic theory?
How many CENTImeters are in one meter?
Mass=?
Mass= Density x Volume
State the SigFig rule pertaining to multiplication and division.
When performing math problems involving multiplication or division, the amount of significant figures in the answer is dependent upon the factor with the fewest significant figures in the problem.
List the steps involved in the scientific method.
Observation, Hypothesis, Law, Theory
What must you ALWAYS do when doing dimensional analysis (specific to Professor Adams)?
CROSS OUT YOUR UNITS!
Volume=?
Volume= Mass/ Density
State the SigFig rule pertaining to addition and subtraction.
When performing math problems involving addition or subtraction, the amount of significant figures in the answer is dependent upon the factor with the fewest decimal places in the problem.
Who stated "the most important idea in all of human knowledge is that all things are made of atoms"?
Richard Feynman
Convert 6.67 grams to kilograms.
0.00667 kg
If you are given the length of one side of a cube, how would you solve for the volume of said cube?
Volume= L x W x H
Explain how you would solve a multistep math problem while applying the correct significant figures in the answer.
Follow the order of operation (PEMDAS) as necessary and follow the SigFig rules that pertain to the step you are completing at the specific moment. Instead of rounding to correct SigFigs in the middle of the problem, take note of the necessary SigFigs and shift to the next step and it's corresponding SigFig rule. At the end, determine the SigFigs in the answer by looking at the last step you just completed.
What is the Law of Conservation of Mass, and who created it?
Mass can neither be created nor be destroyed but can be transformed from one form to another. Antione Laviosier
Put the following units in order of increasing size:
g, kg, mg
km, cm, m
mL, L
mg, g, kg
cm, m, km
mL, L
What is the density of a 45 g piece of copper with a volume of 6 cm^3?
7.5g/cm^3