CHEM 1212 ACS FINAL EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026/2027

CHEM 1212 ACS FINAL EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026/2027 Which of the following is an example of a Brønsted-Lowry base in water? A) H3O+ B) CO2 C) NH3 D) HCl - Answers NH3 What is the temperature in Fahrenheit when it is 35*C outside? A) 67 B) 95 C) 63 D) 75 - Answers 95 In a chemical equation, the reactants are on which side of the arrow? A) right B) left C) neither right nor left D) both right and left - Answers Left What does the law of conservation of mass state? A) all matter is equally created B) matter changes but is not created C) matter can be changed, and new matter can be created D) matter can be created, but not changed - Answers Matter changes but is not created Which factors decree solubility of solids? A) Heating B) Agitation C) Large surface area D) Decreasing solvent - Answers Decreasing solvent What information is used to calculate the quantity of solute in a solution? A) Molarity of the solution B) Equivalence point C) Limiting Reactant D) Theoretical Yield - Answers Molarity of the solution How does adding salt to water affect its boiling point? A) it increases it B) it has no effect C) it decreases it D) it prevents it from boiling - Answers it increases it What is the effect of pressure on a liquid solution? A) it decreases solubility B) it increases solubility C) it has little effect on solubility D) it has the same effect as with a gaseous solution - Answers it has little effect on solubility Which of these is a substance that increases the rate of a chemical reaction? A) catalyst B) helium C) solvent D) inhibitor - Answers Catalyst If sodium hydroxide (NaOH) is added to a dilute solution of potassium hydroxide (KOH), how will the NaOH equilibrium be affected, compared to NaOH dissolved in pure water? A) sodium hydroxide always dissociates completely to form more ions B) The equilibrium of sodium hydroxide is unaffected by KOH C) The equilibrium of the reaction favors sodium hydroxide D) sodium hydroxide does not dissociate in the KOH solution - Answers The equilibrium of the reaction favors sodium hydroxide Which statement is true about the pH of a solution? A) A solution cannot have a pH less than one B) The more hydroxide ions there are in the solution, the higher the pH will be C) If an acid has a pH of greater than -1, it is considered a weak acid D) A solution with a pH of 2 has ten times the amount of hydronium ions than a solution with a pH of 1 - Answers The more hydroxide ions there are in the solution, the higher the pH will be Suppose that you exhale half a liter (.5L) of carbon dioxide (CO2) gas into a balloon. How many oxygen atoms are present inside the balloon if the oxygen atoms come from carbon dioxide? the molar volume of carbon dioxide is 22.4 L/mol A) 1.34 x 10^22 O atoms B) 2.69 x 10^22 O2 atoms C) 2.69 x 10^22 O atoms D) 1.34 x 10^22 O2 atoms - Answers 2.69 x 10^22 O atoms If 100 mL of .05M AgNO3 is added to 50 mL of .05M Na2SO4, which of the following choices is true? Note that Ksp of Ag2SO4 is 6.9 x 10^-15 A) A precipitate will form without any excess ions B) A precipitate will form with excess Ag+