Final Exam Review Problems 1

Topics: Chemical reaction, Chemical substance, Chemistry Pages: 4 (675 words) Published: December 16, 2014
Chem 152, Fall 2014
Final Exam Review Problems
Final Part I – Ch 1-7 (Wed Dec 10)
Final Part 2 – Ch 8-15 (Mon Dec 15)

Chapter 2
Solve the following problem and report your answer to the correct number of significant figures

Convert 67.8 miles per hour to km per sec.

Chapter 3
Classify the following as an element, compound, homogeneous mixture, or heterogeneous mixture
Beach sand
Ice water
A gold brick

How much heat (in joules) is required to raise the temperature of 25 g of water from 0 °C to 100 °C? The heat capacity of water is 4.184 J/g·°C. If 1 cal = 4.184 J, how much heat is this in calories?

Chapter 4
Identify X:

Give the formula for the compound formed from the most common ions of Ca and O

Chapter 5
Name the following compounds:

Calculate the formula mass of copper(II) sulfate pentahydrate (CuSO4·5H2O)

Chapter 6
Calculate the number of moles and number of molecules in 65.78 g of H2O. How many H atoms and how many O atoms are contained in this sample?

NutraSweet is 57.14% C by mass, 6.16% H by mass, 9.52% N by mass, and 27.18% O by mass. Calculate the empirical formula of NutraSweet. If the molar mass of NutraSweet is 294.30 g/mol, find the molecular formula of NutraSweet.

Chapter 7
Predict the products for the following chemical reactions, then balance and classify as combustion, combination, decomposition, single replacement, double replacement, or acid-base neutralization. HCl(aq) + Fe(s) 

C5H10 + O2(g) 
Pb(NO3)2(aq) + FeCl3(aq) 
HBr(aq) + MgO(s) 
KI(aq) + Pb(NO3)2(aq) 

Predict the products for the following chemical reaction. Write balanced molecular, complete ionic, and net ionic equations. Na2CO3(aq) + HCl(aq)  ?

Chapter 8
2.00 g of ammonia (NH3) are combined with 5.00 g of molecular oxygen to produce nitrogen monoxide and water vapor. Find the limiting reactant and theoretical yield for this reaction. If 2.50 g of...
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