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Indicate the maximum number of electrons in an atom that can have as the following as part of their set of 4
quantum numbers. (Hint – Some may not be possible).
a. n = 3 _________ b. n = 2, l = 1 _________
c. n = 4, l = 3, ml = 2 _________
d. n = 6, l = 0, ml = 0, ms = +1⁄2 _________
e. n = 4, l = 2, ml = -3 _________
f. n = 8, l = 2 _________
g. n = 4, l = 2 _________
h. n = 2, l = 2 _________
i. n = 4, l = 3, ml = -1, ms = +1⁄2 ____
j. n = 3, l = 1, ml = +2 _________
quantum numbers. (Hint – Some may not be possible).
a. n = 3 _________ b. n = 2, l = 1 _________
c. n = 4, l = 3, ml = 2 _________
d. n = 6, l = 0, ml = 0, ms = +1⁄2 _________
e. n = 4, l = 2, ml = -3 _________
f. n = 8, l = 2 _________
g. n = 4, l = 2 _________
h. n = 2, l = 2 _________
i. n = 4, l = 3, ml = -1, ms = +1⁄2 ____
j. n = 3, l = 1, ml = +2 _________
Write the quantum numbers associated with each of the following:
d. the first electron added to the 4f sublevel ______________________________
d. the first electron added to the 4f sublevel ______________________________
The data in the table are for the reaction of NO and O2 at 660 K.
NO (g) + ½ O2 (g) → NO2 (g)
[NO] [O2] Rate of disappearance of NO
(mol/L.s)
0.010 0.010 2.5 x 10-5
0.020 0.010 1.0 x 10-4
0.010 0.020 5.0 x 10-5
a) Determine the order of the reaction for each reactant.
b) Write the rate equation for the reaction.
c) Calculate the rate constant.
d) Calculate the rate (in mol/L.s) at the instant when when [NO] = 0.015 mol/L and [O2] =
0.0050 mol/L.
e) At the instant when NO is reacting at the rate of 1.0 x10-4 mol/L.s, what is the rate at which
O2 is reacting and NO2 forming?
NO (g) + ½ O2 (g) → NO2 (g)
[NO] [O2] Rate of disappearance of NO
(mol/L.s)
0.010 0.010 2.5 x 10-5
0.020 0.010 1.0 x 10-4
0.010 0.020 5.0 x 10-5
a) Determine the order of the reaction for each reactant.
b) Write the rate equation for the reaction.
c) Calculate the rate constant.
d) Calculate the rate (in mol/L.s) at the instant when when [NO] = 0.015 mol/L and [O2] =
0.0050 mol/L.
e) At the instant when NO is reacting at the rate of 1.0 x10-4 mol/L.s, what is the rate at which
O2 is reacting and NO2 forming?
Consider the following equation: Mg(s)+2H₂O(l)→Mg(OH)₂(s)+H₂(g). Find the volume of H₂ produced at STP by the reaction of 76.4 g of magnesium. *
A flywheel of radius 14 in is rotating at the rate of 1000 rpm. How fast does a point on the rim travel in fps?
What is the mass of an atomic number of 8 and 8 neutrons
The radioisotope cesium-137 has a half life of 25.00 years. A sample decays at a rate of 192.0 counts per minute (192.0 cpm) in the year 2000. In what year will the decay rate be 3.000 cmp?
A 0.1036-g sample containing only BaCl2 and NaCl is dissolved in 50 mL of
distilled water. Titrating with 0.07916 M AgNO3 requires 19.46 mL to reach the
Fajans endpoint. Report the %w/w BaCl2 in the sample.
distilled water. Titrating with 0.07916 M AgNO3 requires 19.46 mL to reach the
Fajans endpoint. Report the %w/w BaCl2 in the sample.
Sodium cyanide is the salt of the weak acid HCN. Calculate the concentration of H3O
+
; OH-
; HCN and
Na+
in solution prepared by dissolving 10.8 g of NaCN in enough water to make 5.00 x 102 mL of
solution at 25 0C.
+
; OH-
; HCN and
Na+
in solution prepared by dissolving 10.8 g of NaCN in enough water to make 5.00 x 102 mL of
solution at 25 0C.
According to the following equation, how many moles of aluminum are needed to form 3.7 mol Al2O3?
4Al + O2
4Al + O2
