What tool is helpful for solving Stoichiometry problems?
What is BCA table: Before, Change, After
100
The highest temperature water can be heated to?
What is 100 degrees celsius
100
The main liquid of a solution is a?
What is solvent
100
Always true, Always false, or Sometimes true:
Strong acids have lower pH’s than weak acids
What is sometimes true
200
How many H2O molecules are in 2 moles H2O?
What is 1.2x10^24 molecules
Calculation:
(2moles)*(Avogadro’s#/1mole H2O)
200
What is a mole ratio?
What is a ratio between the amounts in moles of any two compounds involved in a chemical reaction. Mole ratios are used as conversion factors between products and reactants in many chemistry problems.
200
How would you rank the relative magnitudes of the forces between particles of different phases? Weakest to strongest
What is Solid- Weakest
Liquid- Middle
Gas- Strongest
200
What is a stable homogeneous mixture?
What is a solution
200
How can a weak acid solution have the same pH as a strong acid solution?
What is by either adding more acid to the weak solution or diluting the stronger solution
300
When is the only time you can determine the moles and volume of a gas?
What is when it is assumed the gas is at standard temperature and pressure (STP)
300
When a big molecule is made from 2 or more smaller molecules, what reaction is made?
What is synthesis reaction
300
If you have 5.5 moles of gas held at a temperature of 213 degrees Celsius in a 15 L container, what is the pressure of the gas?
What is P=14.61 atm
Calculations:
PV=nRT
P= pressure
V= volume
n= number of moles
R= constant
T= temperature
300
Complete this sentence:
The ___________ of a solute in units of ___________ is found by calculating the number of ______ of solute per liter of solution.
What is
1: concentration
2: molarity
3: moles
300
Always true, Always false, or Sometimes true:
A solution whose pH 2.00 contains a stronger acid than a solution whose pH is 3.00