Unit 5 Flashcards
Define Solvent
Able to dissolve other substances.
Define Solute
the minor component ( smaller amount )in a solution, dissolved in the solvent
Define solubility
Referring to the ability for a given substance, the solute , to dissolve in a solvent.
3 things that increase the rate of solubility
Increase temperature
Smaller particles(crushed tablet compared to whole tablet)
Stirring the solution
If you have 80 mil of vinegar and you add 20 mil of water. In this solution , the water is identified as what part of the solution?
it the solute because it’s the smaller amount.
Is the process of dissolving a solute in solvent a chemical reaction or a physical reaction?
Physical change because the parts never chemically combined
Why is water described as the universal solvent?
The unequal sharing of electron between oxygen and hydrogen.
Explain what happens to solubility when you increase the temperature.
As you increase temperature the solubility increases
Why is water described as a polar substance?
Positive end and negative end
Positive charge
What most impacts whether a substance will dissolve in water?
Polarity (If it’s polar it will dissolve, if non polar will not dissolve)
What is pH level?
Is a measure of how acidic or basic a substance is.
Characteristics of an acid.
Acids taste sour
Acids react strongly with metals
pH level 0-6
When you combine an acid and base what happens
Acids mixed with bases neutralized each other
What is a neutral solutions pH?
pH of 7
A liquid wit a pH of 3.0 is how many times more acidic than one with a pH of 4.0.
Ten times
