Glg 101 Test Questions And Answers
Jillian Mulrooney & Emma Zika
Test Questions
Concept 1: Write the name of the acids and bases from given formula
Q-1-1: Name the following base: NaOH
Q-1-2: Name the following acid: HCN
Concept 2: Write the formula form given name of acids and bases Q-2-1: Write the formula for the following acid: lithium hydroxide Q-2-2: Write the name for the following base: hydrobromic acid
Concept 3: Distinguish between acid, base, neutral compounds based on their properties which can be tested in a lab setting. Q-3-1: If a solution is slippery to the touch is it an acid or a base? Q-3-2: If blue litmus paper turns red is the substance present an acid, base, or neutral compound?
Concept 4: Calculate Molarity Q-4-1: What is the molarity …show more content…
Q-5-2: How is ionization different in acids and bases; using the definition of the Bronsted-Lowry model?
Concept 6: Determine the conjugate acid-base pairs Q6-1: What is the conjugate acid of C2H3O2-? Q-6-2: What is the conjugate base of NH4+?
Concept 7: Identify strong acids and strong acids by name and formula Q-7-1: What is the equation for the strong acid Nitric acid? Q-7-2: What is the ionization equation for Ethylamine?
Concept 8: Understand the basic units of the pH scale and be able to distinguish between acid, base, and neutral compounds using the pH scale. Q8-1: What is something with a pH of 8? Q-8-2: A pH of 6 or lower results in what kind of compound?
Concept 9: Understand Kw and its relationship to the ionization of water. Understand the relationship between [OH-] and the [H+] or [H3O+] in acidic and basic solutions. Q-9-1: Determine how many more times more basic the first pH is versus the second pH pH of 5 vs. pH of 3 Q-9-2: Calculate ion concentration. [H+]= 2.0x10-7M
Concept 10: Calculate pH, pOH, H+, or H30+ Q-10-1: Calculate the pH of [H+]= 1 ∗ 10-11 Q-10-2: Calculate the pH of [OH-]=1 x 10 -13
Answer Key, Explain your answers clearly in detail.
Concept 1:
A-1-1. Sodium …show more content…
Given the mass of NaCl we can easily calculate moles using the fence method. First find the mass of one mole of NaCl, which is equal to 58.44 g. Then take the amount of moles you have been given, 1.7, and divide that by 58.44 g. The total number of moles in this problem is 0.03 moles. Given the mL of solution we can easily calculate liters, again using the fence method. Take the amount of mL given and use a conversion factor of 1 mL/1000 L to calculate that there is 0.75 liters in the final solution. To find Molarity you divide 0.03 moles/ 0.75 liters to end up with 0.04 Molarity.
Concept 5:
A-5-1. Arrhenius says that an acid produces H+ in water. Bronsted Lowry says that and acid is a proton donor.
Explanation: The two definitions differ. Arrhenius acid is defined as a compound that produces H+ in water. Bronsted Lowry definition states that an acid is a H+ proton donor.
A-5-2. Bronsted-Lowry definition simply states that acids and bases react differently in ionization reactions based on their needs to bond with other molecules.
Explanation: Acids are typically proton donors, and allow their H+ ion to be donated in order to form a more compatible bond with an compound that has a larger number of atoms present. Bases are typically proton acceptors, and allow H+ to be accepted in order to complete the specific number of atoms it needs to form a stable compound.
Concept 6:
A-6-1. C2H4O2
Explanation: The conjugate acid pair is
Test Questions
Concept 1: Write the name of the acids and bases from given formula
Q-1-1: Name the following base: NaOH
Q-1-2: Name the following acid: HCN
Concept 2: Write the formula form given name of acids and bases Q-2-1: Write the formula for the following acid: lithium hydroxide Q-2-2: Write the name for the following base: hydrobromic acid
Concept 3: Distinguish between acid, base, neutral compounds based on their properties which can be tested in a lab setting. Q-3-1: If a solution is slippery to the touch is it an acid or a base? Q-3-2: If blue litmus paper turns red is the substance present an acid, base, or neutral compound?
Concept 4: Calculate Molarity Q-4-1: What is the molarity …show more content…
Q-5-2: How is ionization different in acids and bases; using the definition of the Bronsted-Lowry model?
Concept 6: Determine the conjugate acid-base pairs Q6-1: What is the conjugate acid of C2H3O2-? Q-6-2: What is the conjugate base of NH4+?
Concept 7: Identify strong acids and strong acids by name and formula Q-7-1: What is the equation for the strong acid Nitric acid? Q-7-2: What is the ionization equation for Ethylamine?
Concept 8: Understand the basic units of the pH scale and be able to distinguish between acid, base, and neutral compounds using the pH scale. Q8-1: What is something with a pH of 8? Q-8-2: A pH of 6 or lower results in what kind of compound?
Concept 9: Understand Kw and its relationship to the ionization of water. Understand the relationship between [OH-] and the [H+] or [H3O+] in acidic and basic solutions. Q-9-1: Determine how many more times more basic the first pH is versus the second pH pH of 5 vs. pH of 3 Q-9-2: Calculate ion concentration. [H+]= 2.0x10-7M
Concept 10: Calculate pH, pOH, H+, or H30+ Q-10-1: Calculate the pH of [H+]= 1 ∗ 10-11 Q-10-2: Calculate the pH of [OH-]=1 x 10 -13
Answer Key, Explain your answers clearly in detail.
Concept 1:
A-1-1. Sodium …show more content…
Given the mass of NaCl we can easily calculate moles using the fence method. First find the mass of one mole of NaCl, which is equal to 58.44 g. Then take the amount of moles you have been given, 1.7, and divide that by 58.44 g. The total number of moles in this problem is 0.03 moles. Given the mL of solution we can easily calculate liters, again using the fence method. Take the amount of mL given and use a conversion factor of 1 mL/1000 L to calculate that there is 0.75 liters in the final solution. To find Molarity you divide 0.03 moles/ 0.75 liters to end up with 0.04 Molarity.
Concept 5:
A-5-1. Arrhenius says that an acid produces H+ in water. Bronsted Lowry says that and acid is a proton donor.
Explanation: The two definitions differ. Arrhenius acid is defined as a compound that produces H+ in water. Bronsted Lowry definition states that an acid is a H+ proton donor.
A-5-2. Bronsted-Lowry definition simply states that acids and bases react differently in ionization reactions based on their needs to bond with other molecules.
Explanation: Acids are typically proton donors, and allow their H+ ion to be donated in order to form a more compatible bond with an compound that has a larger number of atoms present. Bases are typically proton acceptors, and allow H+ to be accepted in order to complete the specific number of atoms it needs to form a stable compound.
Concept 6:
A-6-1. C2H4O2
Explanation: The conjugate acid pair is