Acids
What color does PHENOLPTHALEIN turn when it touches an ACID?
Red
What color does PHENOLPHTHALEIN turn when it touches a BASE?
Pink
What are the products of a reaction between an acid and a base?
a) a salt and hydrogen gas c) a salt and water
b) water and hydrogen gas d) water and oxygen
c) a salt and water
24) What is the concentration of OH- in pure water?
a) 1.00 x 10^-7 M c) 1.00 x 10^-14 M
b) 0.7 M d) 35.5 M
a) 1.00 x 10^-7 M
9) Which of the following is a homogeneous mixture?
a) water c) NaCl
b) salt water d) sugar
b) salt water
What is the acid commonly found in the human body?
Hydrochloric Acid.
7-12
If the amount of solute present in a solution at a given temperature is less than the maximum amount that can
dissolve at that temperature, the solution is said to be
a) saturated. c) supersaturated.
b) unsaturated. d) concentrated.
b) unsaturated.
What is the molarity of a solution that contains 0.202 mol KCL in 7.98L?
M= 0.0253
What Fruit is radioactive?
Banana
What type of ion does an acid form in an aqueous solution?
a) hydronium c) water
b) hydroxide d) chloride
a) hydronium
What Is a common household base?
Bleach, Soap, Etc.
As temperature increases, solubility of solids in liquids
a) doesn’t make a difference. c) usually increases.
b) always decreases. d) usually decreases.
c) usually increases.
Determine the molarity of 275 mL of solution containing 35.0 g of NaOH
3.18 M NaOH
What is the most abundant element in the universe?
Hydrogen
What distinguishes a strong acid from a weak acid?
a) Strong acids have a higher pH
b) Strong acids have more acid particles present
c) Strong acids completely dissociate in water.
d) Weak acids won’t hurt the skin.
c) strong acids completely dissociate with water
Bases are commonly used for what?
Cleaning.
What combination of acid and base will produce the salt BeCl2?
a) BeOH and HCl2 c) Be(OH)2 and HCl
b) HBe and ClOH d) HBe and Cl2OH
c) Be(OH)2 and HCl
What is the molality of an aqueous solution of 45.5 g KCL in 5.24 kg of water?
m = 0.116 m
What is the study of mushrooms called?
Mycology
Identify the acid from the following list of compounds.
a) KOH c) Na2CO3H2O
b) Mg(OH)2 d) HBr
d) HBr
15) Identify the base from the following list of compounds.
a) H3PO4 c) H2CO3
b) Ca(OH)2 d) C6H6
b) Ca(OH)2
Complete the equation
H2SO4 + 2 H2O →
2 H3O+(aq) + SO42-(aq)
What is the freezing point of a solution that has 95.0 g of NaCl dissolved in 150.0g of water?
-40.2oC
What is the world's largest desert?
Antarctica