Jefferson Community College

Titration Gizmos Answer Key Exam Questions And Answers What is the pH of an HCl solution if [H+] = 0.03? A. 0.03 B. 1.5 C. 3.0 D. 3.5 - ANS Correct Answer: B. 1.5 The reaction of perchloric acid (HClO4) with lithium hydroxide (LiOH) is described by the equation:HClO4 + LiOH → LiClO4 + H2OSuppose 100 mL of perchloric acid is neutralized by exactly 46.9 mL of 0.75 M lithium hydroxide. What is the concentration of the perchloric acid? A. 0.35 M B. 0.47 M C. 0.63 M D. 1.6...

pH Analysis Gizmo Assessment Questions And Answers Place these unknown pH test papers in order from most acidic to most alkaline. - ANS D. Paper D, paper C, paper A, paper B

Limiting Reactants Gizmos Answer Key Exam Questions And Answers The limiting reactant in a chemical reaction is the reactant that A. is used up at the end of the reaction. B. is left over after the reaction. C. has the largest number of atoms. D. has the fewest number of atoms. - ANS Correct Answer: A. is used up at the end of the reaction. How many water molecules (H2O) can be produced from 6 molecules of hydrogen gas (white) reacting with 6 molecules of oxygen gas (red)? Whi...

Solubility and Temperature Gizmos Answer Key Exam Questions And Answers You begin pouring sodium chloride into a glass of water. For a long time, the sodium chloride just dissolves in the water, but suddenly it begins to pile up at the bottom of the glass. Which statement is true? A. The sodium chloride has increased the temperature of the water. B. The sodium chloride has decreased the temperature of the water. C. The water is unsaturated. D. The water is saturated. - ANS D. Th...

Gas Laws Boyle's Law & Charles Law Exam Questions And Answers When applying Boyle's law, as volume decreases, pressure ________. - ANS increases To be able to measure Boyle's law, what must remain consistent? - ANS temperature When Boyle's law is graphed, what type of graph is it? - ANS negative; inverse; nonlinear; and exponential What are some examples of Boyle's law? - ANS balloons; oxygen/scuba tank; when you get a flat tire, and the way your lungs work Whe...

Phase Changes Gizmo Exam Questions And Answers The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature and volume of water in the pot? (All temperatures in °C.) - ANS The temperature will remain constant, and the water volume will decrease. Which of the following statements is most accurate? - ANS All of the above.

Temperature and Particle Motion Gizmo : Exploring Exam Questions And Answers The graph below shows the velocity distribution for a gas at 400 K. Which of the following graphs correspond to the same gas at 800 K? - ANS Correct Answer: D. Graph D A high-temperature gas is compared to the same gas at lower temperature. Which of the following statements is true? - ANS Correct Answer: B. The average molecular speed in t

Ideal Gas Law (Gizmo)Exam Questions And Answers If the volume occupied by the gas molecules shown below were doubled, what would happen to the pressure they exert? (Assume constant temperature) - ANS A. It would be cut in half If the temperature of the gas molecules shown below were reduced to 200 K, what pressure would they exert? (Assume constant volume) - ANS B. 0.50 atm

Boyle's Law and Charles' Law (Gizmo) Exam Questions And Answers The volume of the ideal gas in the container is 9m^3. What would the V be if 4 more blocks were placed on top of the lid of the container w/ the temperature of the gas kept constant? (The lid has a mass equal to that of two blocks) - ANS C. 4.5 m^3 Which of the following graphs correctly represents the relationship between the pressure and volume of an ideal gas that is held at constant temperature? - ANS B. Graph B

Student Exploration-Boyle’s Law and Charles’s Law GIZMO-with 100% verified solutions-2023-2024