Leader: Kia Chapter 1-4 Review Course: CHEM 177 Supplemental Instruction Instructor: Anand Iowa State University Date: April 25th, 2017 Chapter 1: Matter and Measurement Concept Check Create a diagram about the classification of matter it should include the terms matter, – element, homogenous mixture, pure substance, heterogenous mixture, and compound. What’s the difference between precision and accuracy? Practice Problems How many significant figures do the following numbers possess? 20.03 kg 10 dollar bills 1.90 x 103 L cm3 Complete the following calculations and round off answers to the correct number of significant figures 11.020 + 300.0 + 2.0030 = A gold bar has the following dimensions: 2.50 cm x 2.00 cm x 1.50 cm. Assuming that gold can be sold for $1100/oz, what is the value of the gold bar? The density of gold is 19.32 g/cm3, and 1 lb=453.6 g. Chapter 2: Atoms Molecules and Ions Concept Match the following definitions with their terms A general name for a positive Isotopes ion Cation The number 85 in Atomic number The number 37 in Mass number and are examples Practice Problems
Chapter 1-4 Review Supplemental Instruction Iowa State University Leader: Kia Course: CHEM 177 Instructor: Anand Date: April 25th, 2017 Chapter 1: Matter and Measurement Concept Check Create a diagram about the classification of matter – it should include the terms matter, element, homogenous mixture, pure substance, heterogenous mixture, and compound. What’s the difference between precision and accuracy? Practice Problems How many significant figures do the following numbers possess? 20.03 kg 1.90 x 103 L 10 dollar bills cm3 Complete the following calculations and round off answers to the correct number of significant figures 11.020 + 300.0 + 2.0030 = A gold bar has the following dimensions: 2.50 cm x 2.00 cm x 1.50 cm. Assuming that gold can be sold for $1100/oz, what is the value of the gold bar? The density of gold is 19.32 g/cm3, and 1 lb=453.6 g. Chapter 2: Atoms Molecules and Ions Concept Match the following definitions with their terms A general name for a positive ion The number 85 in The number 37 in and are examples Isotopes Cation Atomic number Mass number Practice Problems
CHEM_177__1-13__Anand_kia_042517WS.docx