CHM1025C  Module 2 Pretest Homework Packet  Name:___________

Module Two: ChemMath and Measurement (Corwin Chapters PSS & 2)

A. _____(05) Significant Figures- Section PSS.2 Answers

B. _____(05) Round Off/Math of Significant Figures- Section PSS.2 Answers

C. _____(05) Scientific Notation  Section PSS.6 Answers

D. _____(05) Metric Basic Units /Numerical Prefixes- Section 2.1Table 2.1 2.2Answers

E. _____(05) Metric System Conversion Factors- Section 2.2-2.3 Answers

F. _____(10) Unit Analysis Sections 2.3, 2.4, 2.5 Answers Pretest #2 Ans2 Online Site

G. _____(05) Temperature Conversion Section 2.9 Answers

H. _____(05) Density/Specific Gravity Calculations Section 2.6-2.7-2.8Answers

I.  _____(05) Specific Heat Calculation/Ice Cube Problem Section 2.10  Answers

_______(50) Total = ______%

M  _____(25) Multiple Choice (Measurement) Chapter PSS and 2 (In Blackboard)

Module Two: Homework Packet

Module Two-Part A: Significant figures                                  5 points

In the blank, state the number of significant figures in each of the following measurements:

____1.  0.05 mL

____2.  250.0 cm

____3.   456,000,000 people

_____4.  1000 g

_____5.  0.00006500 moles

_____6. 0.00200 kg

_____7. 50 seconds

_____8. 50.0 Seconds

_____9. 50.00 Seconds

_____10. 0.05 Seconds

Significant Digit Animation:

Additional Homework (not required) for your practice:

Corwin 7th edition:

Page 25 Questions #9 -14