AP CHEMISTRY FINAL EXAM
- The table below gives the data that is needed to calculate the average atomic mass of
element B.
Isotope Atomic mass (amu) Relative abundance (%)
B-10 10.01 19.91
B-11 11.01 80.09
Based on these data, what is the average atomic mass of element B?:
A. 10.01
B. 10.51
C. 10.81
D. 11.01
C. 10.81
- Consider the balanced equation below. mc003-1.jpg
What is the mole ratio of PCl3 to PCl5?:
A. 1:1
B. 2:1
C. 3:5
D. 5:3
A. 1:1
- What else is produced during the replacement reaction of magnesium and hydrochloric aci:
Mg + 2HCl ’ H2 + ?
MgCl2
- Consider the reaction below. 2Al2O3 mc019-1.jpg 4Al + 3O2
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How many moles of oxygen are produced if 11.0 mol of Al are produced?:
A.8.25 mol
- 11.0 mol
- 14.7 mol
- 16.5 mol
A.8.25 mol
- The following balanced equation shows the formation of sulfur dioxide.
S + O2 mc023-1.jpg SO2
How many moles of sulfur are needed to produce 15.0 mol of sulfur dioxide?-
: A. 7.50 mol
- 10.5 mol
- 15.0 mol
- 30.0 mol
- 15.0 mol
6. What is the electron configuration for helium (He)?: A. 1s1
- 1s2
- 1s22s1
- 1s22s2
- 1s2
- Which proportionality shows the result of combining Avogadro's law with Boyle's law?:
- mc029-1.jpg
- mc029-2.jpg
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