What color does Litmus paper turn when testing an acid?
Red
What ion is usually found in a base?
OH-
When an acid reacts with a metal, what gas is produced?
Hydrogen Gas (H2)
What technique is pictured here?
Titration
A particular solution feels slippery, tastes bitter and has a pH of 8. How should it be classified?
A Base
What ion is found in every acid?
H+
Which indicator is pink in a base and colorless in an acid?
Phenolphthalein
When an acid reacts with a _______, Carbon dioxide (CO2) gas is produced.
Carbonate
If the volume of a buret starts at 2.40 mL what should the ending volume be if you dispense 17 mL
19.40 mL
If a solution has a pOH of 7.0, what is the pH of that solution? Is the solution an acid or a base?
7, Neutral
In the Kitchen, what taste is associated with acids?
Sour
What two products are produced when bases react with acids?
Water and Salt
Predict the products and balance the reaction.
HCl + Al →
6 HCl + 2 Al → 2 AlCl3 + 3 H2
Calculate the volume (mL) of 17.4 M HC2H3O2 stock solution needed to make 2000 mL of a diluted solution with a concentration of 0.5M.
57.5 mL or 0.0575 L
What is the correct formula for Magnesium Hydroxide?
Mg(OH)2
What color should you observe when Phenolphthalein is added to an acid?
Clear / Colorless
Bronstead - Lowry defined bases as proton ________.
Acceptors
Predict the products and balance the reaction.
HCl + Ba(OH)2 →
2 HCl + Ba(OH)2 → BaCl2 + 2 H2O
What volume of 0.050 M NaOH is required to exactly neutralize a 20.0 mL sample of 1.0 M H2SO4 solution?
0.8 L or 800 mL
HBr
HCl and H2SO4 dissociate completely in water. This means they are __________.
Strong Acids
When the indicator changes color during a titration, you have reached the ______.
Endpoint
Predict the products and balance the reaction.
H3PO4 + Na2CO3 →
2 H3PO4 + 3 Na2CO3 → 2 Na3PO4 + 3 H2O + 3 CO2
It took exactly 240 mL of 0.250 M NaOH to titrate a 10.0 mL sample H2CO3 solution. What is the molarity of the H2CO3 solution?
3.0 M
What is the correct name for H3PO4?
Phosphoric Acid