Chem 11 Chapter 1 Review

Scientific Notation and Graphing

100

Determine the expanded form of 1.56 x 10⁴

15 600

200

Determine the scientific notation of 0.0056330

5.633 x 10^-3

300

What is a qualitative property and give an example.

A qualitative property is an observation that does not include numbers.  Examples are colour, smell, flammability, hardness, texture

Sig-Figs

100

Determine the number of sig-figs in the following:

a) 0.006788   b) 8.100 x 10^-5     c) 29000

a) 4    b) 4     c)2

200

Answer to the proper number of sig-figs

(4.544 x 18.3)/0.0067

12000

300

Calculate and round to the proper number of sig-figs.

192.32-90.6 + 89

191

Conversions

100

How many Mg in 40 000g?

0.04 Mg

200

How many microlitres in 0.00850cL?

85 microlitres

300

Convert 14.5 mg/L to g/mL

1.45 x 10^-5 g/mL