Unit 5 Flashcards
Define Solvent
Able to dissolve other substances
Define Solute
Minor component in a solution,dissolved in the solvent
Define Solubility
Referring to the ability for a given substance, the solute, and to dissolve in a solvent
Name 3 things that can increase the rate of solubility
Increase temperature
Smaller particles(crushed tablet compared to whole tablet)
Stirring the solution
If you have 80mL of vinegar and you add 20mL of water. In this solution, the water is identified as what part of the solution
The water would be the solute because it’s the smaller amount
Is the process of dissolving a solute in a solvent a chemical reaction or a physical reactions? Explain why.
Physical change because the parts never chemically combine
Why is water described as the universal solvent?
The unequal sharing of electrons between oxygen and hydrogen
Explain what happens to solubility when you increase the temperature?
As you increase the temperature the solubility increases
Why is water described as a polar substance?
A positive end and a negative end
Positive charge
What most impacts at whether a substance will dissolve in water?
Polarity
What is pH level?
A measure of how acidic or basic a substance is
Give characteristics of an acid.
Tastes sour
Acids react strongly with metals
pH levels 0-6
When you combine an acid and base what happens?
They neutralize each other
What is a neutral solutions pH?
pH of 7
A liquid with a pH of 3.0 is how many time more acidic than one with a pH of 4.0?
10 times
