Solutions and Mixtures
What is the substance that gets dissolved in a solution?
The solute
What is an electrolyte?
A substance whose aqueous solution conducts electricity
What colour does blue litmus turn in an acid?
Red
What does a "dilute solution" mean?
It contains a small amount of solute
What is solubility?
Amount of solute that dissolves in a given amount of solvent at a specific temperature
What type of mixture is a solution?
Homogenous Mixture
Separation of ions that occurs when an ionic compound dissolves in water
Dissociation
According to the Modified Arrhenius Theory, what ions do bases produce in water?
Hydroxide ions (OH-)
What is the formula for amount concentration?
C = n/v
What type of solution contains undissolved solute at the bottom?
Supersaturated solution
In the example NaCl + H2O, which is the solvent?
Water
Write the dissocation equation for KCl(s)
KCl(s) → K⁺(aq) + Cl⁻(aq)
A solution has a pH of 5.3. Calculate its hydronium ion concentration with the PROPER UNIT
5.0 x 10^-6 mol/L
A 175 mL glass of apple juice contains 12g of sugar per 100mL (12% W/V). How much sugar is in the 175 mL serving?
12g/100 mL x 175mL = 21g
Why do reactions occur faster in solution
Dissolving increases surface area and increases collisions
Gases have ____ solubility in water at ______temperatures
higher solubility in water at lower temperatures
What is the process called when water molecules pull apart an ionic lattice?
Solvation
Why are acids considered electrolytes?
Acids ionize in water to produce ions, allowing the solution to conduct electricity
There are 0.186 mols of NaOH in 0.250 L of solution. What is the concentration?
c = n/v
0.186 mol/0.250 L
= 0.744 mol/L
What is dynamic equilibrium?
The number of particles dissolving is equal to the number of particles crystallizing