Show:
Moles
Matter
Gases
Solutions
Acids/Bases
100
A mole is used in what kind of science
What is chemisty
100
Matter is made up of these
What is atoms
100
Whose law is being used in the following situation… A sample of gas in a flexible container occupies 46.5 mL at standard pressure. What volume will it take up if the pressure was increased to 3 atm? Assume constant temp.
What is Temp is held constant, so it is Boyle’s law.
100
The way to determine the amount of solute that will precipitate out of a solution at two different temperatures.
What is to substract their solubilities.
100
The molarity of sodium hydroxide if 12.0 mL of solution is neutralized by 6.00 mL of 2.00 HCl.
What is 1 M
200
A mole is a unit of what
What is mass
200
Atoms bond together to form these larger units
What are molecules
200
A balloon has a volume of 6L at 13.2 psi. If the balloon was brought to a pressure of 9.3 psi, what would the new volume be (assume constant temp).
What is Temp is constant, so use Boyle’s law. P1V1 = P2V2 13.2 psi (6L) = 9.3 psi (V2) V2 = 8.52 L
200
Gases dissolve better at these temperatures.
What is colder temperatures.
200
The number of milliliters of 0.04 M NaOH that must be added to 87 mL of 0.17 M HCl to make a neutral solution.
What is 369.75 mL
300
whats the abbreviation of a mole
What is Mol
300
Matter exists in these 3 states
What are solids, liquids, and gases
300
A gas occupies a volume of 34 mL at 21.8 oC. To what temperature (in Kelvin) must the gas be raised to have a volume of 86 mL? Assume constant pressure.
What is Pressure is constant, so use Charles’ law. V1 = V2 34 mL = 86 mL T1 T2 294.8 K T2 T2 = 745.67 K
300
The solubility curves diagram show curves that describe this property of solutions.
What is saturation
300
If 27.0 mL of 0.047 M HCl is required to neutralize 31.0 mL of NaOH, what is the molarity of the NaOH solution
What is 0.04095 M
400
What does a mole calculate
What is the amount of chemical substances that are used and produced in a chemical reaction
400
Two different ways that matter can change
What is a physical or chemical change
400
A 50 L container is filled with a gas to a pressure of 4.7 atm at 32oC. At what temperature IN DEGREES CELSIUS will the pressure inside the container be 3.5 atm with a volume of 50 L?
What is Volume is constant, so use John’s law. P1 = P2 4.7 atm = 3.5 atm T1 T2 305 K T2 T2 = 227.13 K = -45.87 oC
400
If the solubility was described to be above the curve on the solubility curve diagram, then the solution is assumed to be this.
What is supersaturated?
400
If 13.15 mL of 0.045 M H2SO4 are required to neutralize 11.05 mL of NaOH, what is the molarity of the NaOH solution
What is 0.1071 M
500
what is "mole" often used in place of
What is gram-molecular weight
500
The ability of a substance to react chemically
What is reactivity
500
A sample of gas has a volume of 23 mL at 39oC and 890 mm Hg. This sample is cooled down to 11oC and now has a volume of 150 mL. What is the new pressure?
What is Use the combined gas law since all variables are changing… P1V1 = P2V2 T1 T2 890 mm Hg ( 23 mL) = P2 (150 mL) 312 K 284 K P2 = 124.22 mm Hg
500
The way to determine the amount of solute that will precipitate out of a solution at two different temperatures.
What is to substract their solubilities.
500
How many mL of 0.0603 M NaOH must be added to 37.060 mL of 0.0203 M H3PO4 to make a neutral solution
What is 37.429 mL