Give me one example of what will cause the pressure of a gas to increase in a container
What is put more gas particles into the container, make the container smaller, or increase the temperature.
100
If salt is dissolved in water, salt serves as the:
What is the solute
100
What is the percent (m/m) of a solution containing 90 g of NaCl in 870 g of solution?
What is 10.3%
100
What does it mean to be neutral, acidic, and basic?
Neutral: pH=7, H+ and OH- ions are equal in solution
Acidic: pH= <7, more positive ions than negative ions in solution
Basic: pH= >7, more negative ions than positive ions in solution
100
What does it mean for 2 liquids to be miscible?
What is the two liquids can mix
200
How many moles of H2 would be contained in 8.0 L of the gas at 202.6 kPa and 227° C?
What is .39 moles
200
Why does ice float in water? What type of bond is between the water molecules?
What is ice forms an open framework (hexagonal shape) as water molecules form hydrogen bonds b/w each other
200
What would increase solubility of a gas in a liquid?
What is decreasing the temperature or increasing the pressure
200
What is the pH of a solution with (H+) concentration of 1.0 X 10^-11? Is it acidic, basic or neutral
What is 11 and it is basic
200
What does it mean to be triprotic?
What is an acid that can ionize 3 H+ (hydrogen ions)
300
What would cut the pressure of a gas in a container in half?
What is doubling the volume
300
What is an example of something that CANNOT dissolve in water? Can be broad.
What is hydrocarbons, nonpolar substances
300
What volume of 2.25M HCl would be required to prepare 578 mL of a 0.500M HCl solution?
What is 130.4 mL
300
What is the (H+) concentration if the (OH-) concentration is 3.2 X 10^-6?
What is 3.125 X 10^9
300
What is an aqueous solution?
What is a substance dissolved in water
400
A gas occupies a volume of 9.76 L at 67 kPa. What volume will the gas occupy at 25 kPa?
What is 26.15 L
400
Does water have a high or low surface tension? Does water have a low or high vapor pressure?
What is high surface tension, low vapor pressure
400
What is the molality of a solution prepared by dissolving 13.0 g of Ba(NO3)2 in 4500 g of water?
What is 0.00108
400
What is the pH if the (OH-) concentration is 3.2 X 10^-6? Is this solution acidic, basic, or neutral
What is 8.5, basic
400
Congrats your team just got an extra bonus point on the final exam
What is 1 pt!
500
If a sample of oxygen occupies a volume of 7.15 L at a pressure of 58.0 kPa and a temperature of 98 K, what volume would this sample occupy at 101.3 kPa and 273 K?
What is 11.3 L
500
How many water molecules are in ten formula units of barium hydroxide octahydrate, Ba(OH)2 • 8H2O?
What is 80
500
What is the molality of an aqueous solution of a molecular solute if the boiling point of the solution is 101.4°C? (Kb H2O = 0.512°C/m)
What is 2.7 molal
500
What is the pH of a solution with a (OH-) concentration of 6.6 X 10^-4? Is it acidic, basic, or neutral?
What is 10.8, basic
500
What does it mean to be an electrolyte? Give an example.
What is a substance that dissolves in water and can conduct an electric current.
Any ionic compound.