CHEM 1250 Study Guide - Quiz Guide: Boiling Point, Intensive And Extensive Properties, Scientific Notation
Dr. Zellmer Chemistry 1250 Friday
Time: 30 mins Spring Semester 2016 January 29, 2016
Quiz I
Name Lab TA/time
----------------------------------------------------------------------------------------------------------------------------------------
Show ALL your work or EXPLAIN to receive full credit.
1. (2 pts) Indicate whether each of the following is an extensive or intensive property.
a) The boiling point of H
2
O is 100EC at 1 atmosphere of pressure.
b) The amount of heat required to heat a beaker of ethanol to boiling.
2. (4 pts) Perform the following mathematical operation and report your answer to the correct
number of significant figures. Report your answer in scientific notation. Include units.
1.3411 x 103 kJ
)))))))))))))))))))))))))
=
(0.57555 g) x (76.75
o
C + 27.105
o
C)
3. (2 pts) Fill in the blanks in the table below for the isotopes indicated.
Symbol number of number of number of atomic mass
protons neutrons electrons number number
)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
80
35Br
!
35
)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
Copyright R. J. Zellmer, January 29, 2016
OVER ...
Document Summary
Show all your work or explain to receive full credit. 2. (4 pts) perform the following mathematical operation and report your answer to the correct number of significant figures. 1. 3411 x 103 kj (0. 57555 g) x (76. 75oc + 27. 105oc) 3. (2 pts) fill in the blanks in the table below for the isotopes indicated. Symbol number of protons number of neutrons number of electrons atomic number mass number. 4. (6 pts) the amount of co in the air in a room on a particular day is 1. 55 x 10!6 kg/m3. How many pounds (lbs) of co are in 100. 0 ft3 of air? (1. 000 lb = 453. 6 g, 1 in = 2. 54 cm) (you. Must use dimensional analysis (factor unit method) to receive full credit!) 5. (6 pts) correctly name or give the correct formula for the following compounds, using the stock system where necessary. (must be legible and correctly spelled. ) (a) hbro2(aq) (b) iron(iii) bisulfite.
