Chapter 1
Chapter 2
Chapter 3
Chapter 4
Free For All
100
Three apprentice carpenters (X, Y, and Z) are assigned the task of measuring the width of a doorway. Each one makes three measurements. The results in inches are X (31.5, 31.6, 31.4); Y (32.8, 32.3, 32.7); Z (31.9, 32.2, 32.1). The true width is 32.0 in. Comment on the precision and the accuracy of each carpenter’s measurements.
What is Carpenter Z’s measurements are the most accurate. Carpenter Y’s are the least accurate. Carpenter X’s are the most precise. Carpenter Y’s measurements are the least precise.
100
Which of the following has a greater mass: 173 atoms of Au or 7.5x10^-22 moles of Ag?
What is 7.5x10^22 moles of Ag
100
List the four quantum numbers and their names. Bonus: what values do they each represent?
What is n –principal quantum number l – angular momentum quantum number ml – magnetic quantum number ms –electron spin quantum number
100
List the different periodic trends discussed in chapter 4.
What is effective nuclear charge, atomic radius, ionization energy, and electron affinity
100
The first General Chemistry Exam will be held on this day.
What is Wednesday.
200
A lead sphere has a mass of 1.20x10^4 g and its volume is 1.05x10^3 cm3. Calculate the density of lead.
What is 11.4 g/cm3
200
Boron has two naturally occurring isotopes, 10B and 11B, which have masses 10.0129 and 11.0093 amu, respectively. Given the average atomic mass of boron (10.81 amu), determine the percent abundance of each isotope.
What is 10B- 20% 11B- 80%
200
What element is represented by the following electron configuration? 1s22s22p63s23p64s23d104p4
What is Se
200
Describe the trend of effective nuclear charge.
What is increases from left to right across the periodic table.
200
What days and times are SI sessions held.
What is Monday 4:30-5:30, Tuesday 6:00-7:00, and Thursday 12:00-1:00
300
What is the SI unit for length.
What is meter.
300
The gold foil experiment proving that atoms are mostly empty space was developed by:
What is Rutherford
300
30. The red line of the hydrogen emission spectrum has a wavelength of 656.1 nm. What is the energy of that photon? (E = hv c= v c=3.00 x 108 m/s h = 6.63 x 10-34 J * s)
What is A. 4.35 x 10-31 J B. 1.01 x 10-36 J C. 2.14 x 10-42 J D. 3.03x 10-19 J
300
Describe the trend of atomic radii.
What is increases from right to left across the periodic table and down. (Largest-bottom left).
300
You are going to help a restoration expert find out the dimensions of a certain sheet of gold she is using on a project. The sheet is 13.6 in. long and has a thickness of 2460.0 micrometers. If the density of the gold is 19.30 g/cm3 and the sheet weighs 18.98 oz., what is the width of the gold sheet in cm? 1 oz.= 28.35g
What is 3.28 cm
400
How many meters are in a Gigameter?
What is 10^9 meters
400
List the different parts of the periodic table
What is alkali metals, alkali earth metals, transition metals, non-metals, metalloids, halogens, noble gases, lanthanides, and actinides.
400
A photon has a frequency of 6.5 × 109 Hz. (a) Convert this frequency into wavelength (nm). Does this frequency fall in the visible region? (b) Calculate the energy (in joules) of this photon. (c) Calculate the energy (in joules) of 1 mole of photons all with this frequency
What is a) 4.6x10^7nm, no b) 4.3x10^-24 J/photon c) 2.6 J/mol
400
Describe the trend for Ionization energy.
What is increases from left to right across the periodic table and decreases from top to bottom
400
The joker thinks that he will be able to break the bond in the molecule O2 using blue light (450nm) to create a radical chain reaction that will set off a bomb that he has planted. The energy required to break that bond is 498 KJ/mol. Use your expertise to help Batman figure out if Joker is going to get away with his plan. ?Planck’s constant = 6.63x10-34J*s Speed of light = 3.00x108m/s
What is No the joker will not succeed. 241 nm
500
Define and intensive and extensive property.
What is independent of the amount of matter and dependent of the amount of matter.
500
Milliken earned fame by the oil drop experiment, which proved:
What is The charge and mass of the electron
500
What is the shape of a p orbital
What is dumbell (bowtie)
500
Define electron affinity.
What is the energy released when an atom in the gas phase accepts an electron.
500
When is class over?
What is 8:50am!
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