Exam 1
Exam 2
Exam 3
Exam 4
Chapter 13
100
The typical dose of the anti-inflammatory drug Toradol at a particular concentration is administered to a patient is about 0.270mg per kilogram of body weight. Determine the dose that should be administered to a patient weighing 1.50 x 102 pounds.
(453.6g = 1lb)
18.4 mg/kg
100
Barium sulfate is a compound used to assist in diagnosing medical programs through x-ray analysis and is 46.1% barium. What mass of sulfate is present in a 625mg tablet of barium sulfate?
(Keep answer in mg)
337 mg
or
3.37 x 102 mg
100
What is the energy of a photon of blue light whose wavelength is 470nm (4.70 x 10-7m)
E=hc/wavelength
h=6.626 x 10-34Js
c=3.00 x 108m/s
4.23 x 10-19 J
100
Draw two examples of polar molecules and two examples of non polar molecules
100
In the following equation, identify the acid and base:
HCl (g) + H2O (l) --> H3O+ (aq) + Cl- (aq)
Acid: HCl
Base: H2O
200
Draw a mixture of compounds
Anything with two different compounds can be considered a mixture of compounds
200
What is the net ionic equation for this reaction:
Pb(NO3)2 (aq) + NaI (aq) --> PbI2 (s) + 2NaNO3 (aq)
Pb+2(aq) + 2I-(aq) --> PbI2 (s)
200
Write the electron configuration for Se+
1s22s22p63s23p64s23d104p3
or
[Ar] 4s23d104p3
200
A phase change from gas to liquid is called what? Is this considered endothermic or exothermic?
Condensation
Exothermic
200
What was the problem with Arrhenius' Model?
The model showed that an acid in water produced hydrogen ions (H+), but H+ does not exist completely free in aqueous solutions
300
Which state of matter does this image represent?
Element in a liquid state
300
Balance the combustion reaction!
_C2H6 (g) + _O2 (g) --> _CO2 (g) + _H2O (g)
2C2H6 (g) + 7O2 (g) --> 4CO2 (g) + 6H2O (g)
300
Si
300
The normal boiling point is always measured when the vapor pressure equals _________.
1.00 atm
300
What is the pH of solutions having the following H3O+ concentrations? Identify each as acidic, basic, or neutral.
[H3O+] = 1.60 x 10-12 M
pH = 11.8
Basic
400
Write a compound that contains Iron III and sulfur
Fe2S3
Can you name this compound?
400
Draw the decomposition reaction at the atomic level for LiI and write its products
Products: Li and I2
What would be the following equation?
400
In the following list of elements, which has the highest electronegativity, ionization energy, and atomic size/radius?
Li Na K Rb Cs
Electronegativity: Li
Atomic Size: Cs
Ionization energy: Li
400
What are the intermolecular forces present in hydrogen fluoride (HF)?
*London Dispersion Forces
*Dipole Dipole Forces
*Hydrogen bonding
400
Describe what a buffered solution is
A buffer solution is a combination of a weak acid and its conjugate base in about equal concentrations
500
What is the name of the species containing one carbon and two oxygen, and has a zero charge?
Carbon Dioxide
(CO2)
500
If 38.2g of each sodium chloride and silver nitrate react to form silver chloride and sodium nitrate, how much silver chloride should be produced? (MM=143.35g/mol)
NaCl(aq) + AgNO3(aq) --> AgCl(aq) + NaNO3(aq)
32.2 g AgCl
500
Draw a diatomic element that contains a triple bond
500
A power plant is located next to a river. If the power plant dumps vast amounts of warm water back into the river after it's used to cool the energy process, what is the reason why aquatic life can be threatened?
(*Remember what does high temperature do to reactions?)
The warmer water decreases the amount of dissolved oxygen because when the temperature is higher, the molecules speed up and the reaction rate increases, which pushes the free oxygen atoms into the atmosphere
500
Determine [OH–] in a solution that is 0.055 M in H3O+
1.8 x 10-13