Solute vs Solvent
What is a Solute?
The substance being dissolved
What is a saturated solution?
Contains maximum solute that can dissolve
what does molarity measure?
concentration of a solution
Decreases
What is the Molar Mass of NaCl
58.44 g/mol
What is a Solvent
The dissolving agent
What is an unsaturated solution?
Can still dissolve more solute
what is the unit of molarity?
mol/L or M
What stays constant in a solution during dilation?
Number of moles
What is Avogadro's number?
6.022 x 10^23
In saltwater, identify the solute and the solvent
Solute = Salt
Solvent = Water
What is a super saturated solution?
more solute than needed for a saturated solution at a particular temp
what is the formula for molarity?
M = n / V
What is the dilution formula?
MiVi = MfVf
Is this equation balanced:
Pb(NO3)2 (aq) + 2 HCl (aq) → PbCl2 (s) + 2 HNO3 (aq)
Yes
Which is usually present in a greater amount: solute or solvent? Why?
Solvent. because it needs to do the dissolving, and that requires lots of its particles to interact with the solute.
What happens if you add more solute to a saturated solution?
it will not dissolve
Calculate Molarity: 2 mol in 1 L
2 M
If volume double, what happens to concentration
It halves
What is 105 000 000 000 000 in scientific notation?
1.05 x 10^14
Can a solution have more than one solute?
yes.
What condition is a saturated solution in with undissolved solute?
Equilibrium
Calculate Molarity: 0.5 mol in 250mL
2 M
(What is new Molarity?)
0.5M
The mass number of an atom is calculated by adding what?
Protons and Neutrons