Polarity
Draw NH3 with all of its dipole arrows and determine if it is polar or non polar
polar
A cylinder contains a gas at 2.0 atm and 250 K, occupying a volume of 4.0 L. If the gas is heated to 350 K and the volume expands to 5.5 L, what is the new pressure?
2.036 atm
If the temperature is -10°C, what is it in Kelvin?
263.15 K
You dissolve 5.85 g of sodium chloride (NaCl) in enough water to make 0.500 L of solution. What is the molarity of the solution? (Molar mass of NaCl=58.44 g/mol)
.200 M
What kind of dog does Mrs. Latta have?
Giant Schnauzer
Draw CH4 with all of its dipole arrows and determine if it is polar or non polar
non polar
A gas occupies a volume of 5.0 L at a pressure of 0.8 atm. If the volume is reduced to 2.5 L at constant temperature, what will be the new pressure?
1.6 atm
Name two conditions that makes gases more ideal.
P low, V large, n small, T large, gases that are small and nonpolar
How many grams of potassium hydroxide (KOH) are needed to prepare 250 mL of a 2.00 M solution? (Molar mass of KOH=56.11 g/mol)
28.06g
How old is Mrs. Latta?
28
What has a higher boiling point NH3 or NF3?
NH3
A balloon contains 3.0 moles of helium gas at 298 K and 1.0 atm. If the number of moles of gas is increased to 5.0 moles while the temperature and pressure remain constant, what will the new volume of the balloon be?
V1= 72.414 L
V2= 120.7 L
What is the dominant IMF for CH3COOH?
hydrogen bonding
You need to prepare a reaction that requires 0.75 mol of sulfuric acid (H2SO4). If you have a 3.00 M sulfuric acid solution, how much solution (in liters) do you need to use?
.250 L
What is Mrs. Latta's Favorite candy?
M&Ms (mini)
rank the strength of IMF and give an example of each
hydrogen bonds
London dispersion
dipole-diploe
ion - dipole
London Dispersion- all bonds
dipole-dipole H-Cl
Hydrogen Bonds O-H
Ion Dipole NaCl in water
A sample of gas is contained in a 10.0 L volume at 1.2 atm and 295 K. If the gas is heated to 400 K and the pressure is increased to 1.8 atm, what will the new volume of the gas be? (R=0.0821 L⋅atm/mol)
9.04 L
Identify the type of each of these solids: Cs, H2, CaO, graphite
Cs - metallic, H2 - molecular, CaO - ionic, graphite - network
You dissolve 2.0 mol of sugar in 4.0L of water. What is the molarity of the solution?
0.5 M
When is Mrs. Latta's Birthday?
October 28
who will have a high boiling point NaCl or CH4
If the frequency of a photon is 5.09*1014 Hz, what is the energy (KJ) of one mole of photons?
203 KJ
Name one flaw of KMT.
Gas molecules have no volume (they do have volume)
Gas molecules undergo elastic collisions (they undergo inelastic collisions - they can stick)
If E is 3600 M-1cm-1 and the absorption of solution measures 0.650, what is the concentration?
1.80*10-4 M
What is Mr. Latta's Name
Christopher