Information provided, no addition al tables or notes are allowed.
23
8
1 mol = 6.0221 x 10 ; Speed of light: c = 3.0 x 10 m/s; 1Hz = s-1
C = K-273
-34
Planck's constant: h = 6.626 x 10
kg m2/s2 K mol
0)
J s ; 1 atmosphere = 760 torr R = 0.0821 L atm/ mol K = 8.314
Name all compounds you see here!
A) Density of a compound is 22 kg/cm3. Convert it to g/m3.
1.
………………………………………………………………………….
1
B) Density of a compound is 22g/m3. Convert it to kg/cm3
…………………………………………………………………………
C) Speed is 200km/h convert it to mm//s
………………………………………..
2. A) What is the number of protons in atom of nitrogen N?
…………………
B) What is the number of electrons in an ion of N?
…………………..
C) What is the number of neutrons in an isotope of N?
…………………………………..
3. How many oxygen atoms are in 2g of Ba(ClO4)2
……………………………………
4.
How many moles of Sr(CN)2 are in 1.23 g of this chemical?
…………………………………………..
How many grams of Ca( NO3)2 are in 2g of this compound?
…………………..
5. The name of these ionic and binary compounds :
N 2 O4 is ………………..
N3F is………………..
Al(NO3)3 is……………..
CuCl2 is…………………
CsI……………………..
Ca(ClO4)2
Fe2O3 is………………………………..
CO2 is……………………….
…Name all other compounds you ses……………………………………………………………….
6. Write down the formulae for:
a.
Nitrogen oxide………………..
b.
Nitrogen dioxide…………………..
c.
Trinitrogen tetroxide
……………………………………………
d.
………………………….
7. Determine what mass in g of compound Z forms when y g of Y and x g of X react to produce Z
x X(g) + y Y (g)  z Z (g)
Use your masses and your reactions.
Example : H2 + O2 (balanced H2 + N2  balanced
8.
Choose the correct net ionic equation for the metathesis reaction which occurs when
a) Ba(NO3)2…………….and ………KOH………(aq) are mixed.
BaCl2 + K2SO4………………………………………….
b) Ca(OH)2 +
c)……Ba(OH)2…+ …………………………………………………………………………………
d) Mg(NO3) 2 + NaOH 
9. Which one of the following compounds is insoluble in water? (use examples from text an
dexmas)
a.
10.
500 mL of a X(OH)2 solution was titrated to the equivalence point with 50 mL of a 1.93 M
solution of HCl. What was the concentration of the X(OH)2 solution?
…………………………………………….. (see textbook, neutralization, polyprotic –more than 1 H)
500 mL of a H2 SO4 solution was titrated to the equivalence point with 50 mL of a 1.93 M
solution of NaOH. What was the concentration of the H2 SO4solution?
…………………………………………………………………
11.
What is the molar concentration of Fe3+ in a solution made by diluting 500mL of 2.00 M
Fe2O3 to 1.00 L?
………………………………………
12. Which of the following are strong electrolytes?
HBr HCl HNO3 H3PO4 H2SO4 HF NaOH Ba(OH)2
CH3OH C2H5OH glucose HI HClO4 NH 3
KCl ………………………………………..
What is the energy of a photon which has a frequency of 7.0 x 1015 Hz (cycles/sec)?
……………………………………………..
What is the energy of a photon which has a wavelength of 500nm?..................
……………………………………………………………………………
14.
[ ]…………..is the electron configuration of a(n) __________ atom. /ion
13.
……………… has electron configuration:..[ ] ………………………..
Use this PT. See textbook for example and practice
15.
Quantum rules n, l, m s
………………….
L= 0 s, l=1 p l=2 d..
16. Of the following elements, which has the largest first ionization energy?
……………………….(Use PT , see textbook for trends)
17. Of the following elements, which has the largest radius?
……………………………….(Use PT, trends)
18. The Lewis structure , octet (y/n),formal charges, number of electron domains, molecular electron
domains geometry (names), hybridization, lone pairs, bondings (single,..), angles , molecular
geometry (names of geometries) , polarity , hydrogen bond , number of resonances (if exist)
For the following molecules: CsBr, ZnS, HI, Ba(OH)2, Na2CO3, H2CO3, CO3 2-, Na2SO4,
SO2-, NO3-, HNO3, …SF6, NH3 , PH3 AsH3, As F3, IF3, XeF4, H2O, H2S, NCl3, CH4,
CH3Cl, CF4, , BCl3, BF3,BeCl2, BeF2, Cl2, F2, O2, O3, CO2, SO3, XeO2, H3PO4, CO2,
NO2-, PCl5,SF4, ClF3, XeF2,SF6, BrF5, XeF4……………………………………..
19.
Calculate the number of moles of an ideal gas if it has a pressure of p atm, a volume of V L,
and a temperature of T oC.
20.
Calculate pressure of an ideal gas if it has n moles , a volume of V L, and a temperature of T
oC.
21.
Calculate Volume of an ideal gas if it has n moles , a pressure of p atm (or torr), and a
temperature of T oC.
Etc………………………………………………………………………..
22. What uis the MM of a molecule density d, at T K, p atm in vol V?? (try simple molecules)
…………………………………………………………………………….
23. Which of the following molecules would have the lowest rms velocity at T K, p atm in vol V??
……………………………………………………………………………..
24. What types of intermolecular forces exist between molecules like X
general list before
a.
b.
c.
d.
25.
and Y ? (use molecules from
Dispersion , and ion-dipole
dispersion forces, hydrogen bonding,
dispersion forces, dipole-dipole,
dispersion forces only
Shown below is a phase diagram for A system . Use this phase diagram to pick the correct
statement from the following multiple choices.
Figure (see textbook phase diagrams)
Identify all important points ( gas/liquid, liquid solid limits, normal points boiling and melting,
critical ppoint…..
Identify state of the system at different P and T
26. Which one of the following substances would be the most soluble in X?
27. Which one of the following substances would NOT be soluble in X?
……………………………………………………….