Significant Data

Question 0

What is used rather than a comma to separate numbers?

Answer 0

A space

Question 1

Unit symbols are always,

Answer 1

Lower cases unless named after a person or L liters

Question 2

Use the unit symbol in preference to the word

Answer 2

Ex. 5.0 g/mol rather than 5.0 grams/mole

Question 3

Significant figures

Answer 3

Non zeros
Zeros between non zeros
Trailing zeros (0s to the right of a non zero but only is there is a decimal

Question 4

Multiplying and dividing significant figures

Answer 4

Answer should only have as many figures as the number with the least amount of sig figs digits in the problem

Question 5

Adding and subtracting sig figs

Answer 5

Answer should have only as many digits as the least precise number. Consider the place value of the last sig fig in each number of the problem.