Bronstead Study guides, Class notes & Summaries

Solve these ideal gas law problems. Show all work for credit. 1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points) 2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points) 3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points) 4. A 0.6 L...

CHEM120 Week 4 Assignment: Gas and Acid/Base Chemistry – With 100% Correct Answers 1. Solve these ideal gas law problems. Show all work for credit. a. A gas occupies 250 mL at 739 mmHg. For a ga s at constant temperature, determine the volume of gas at 514 mmHg. (1 points) P*V=P*V 739*250 = 514*V 184750/514 = 359 b. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1 points) 22.4L/mol 4*(1/22.4) 0.179 c. A sample of nitrogen (N2) has a volume...

Chem 1110 Exam 5 verified answers 100% According to the Bronstead-Lowry definition, what is a base? - correct answer an H+ acceptor Which of the following is a strong acid? HCO2H HCN H2CO3 HClO3 HF - correct answer HClO3 Identify the conjugate acid in the equation below. CH3CO2H + LiOH ⟶ CH3CO2- + Li+ + H2O - correct answer H2O What is the pH of a solution containing 2.4 X 10-4 M HNO3? - correct answer 3.6 What is the hydroxide ion concentration in a solution with a pH of ...

TOF steps - CORRECT ANSWER-1) ionisation 2) acceleration 3) ion drift 4) detection 5) analysis Electron impact - CORRECT ANSWER-Sample vaporised and electron gun fires high energy electrons at it which knock off 1 electron from each particle, making them 1+ ions NB- can knock off more than one e or break molecular ion electrospray ionization - CORRECT ANSWER-Sample dissolved in volatile solvent then injected through needle to give fine mist which is attached to positive end of high v...

Notes on this doc include: the mechanisms of acid/base reactions Bronstead-Lowry and Lewis acids and bases Endothermic/Exothermic reactions Determining weaker and stronger acid/ base Pka & Ka Determining acidity of an atom or molecule Energy of a reaction Test prep practice questions

Chapter 8 covers solutions/ solubility and the factors that affect solubility. Also covers solubility rules and concentration plus how to calculate concentration. Chapter 9 covers reactions and types of reactions. Also has rules for assigning oxidation numbers. collision theory and redox reactions are also covered in this chapter, as well as exothermic/endothermic reactions. Chapter 10 covers acid, salts and bases. This chapter includes arrhenius bases and bronstead-lowry bases. Also shows how t...

Solve these ideal gas law problems. Show all work for credit. 1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points) 2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points) 3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points) 4. A 0.6 L...

The document begins by providing the definition of acids and bases. It shows the pH scale which is how to measure the acidity and basicity of a solution along with providing the formulas to do so. Goes in depth to describe the reaction between a strong acid/base, weak acid/base, dilute strong acids, a mixture of weak acid solutions, and weak acid solutions and gives examples to go with. Explains the neutralization reaction along with examples. The document explains conjugate acids and base pairs...

Week 4 Assignment: 20 points 1. Solve these ideal gas law problems. Show all work for credit. a. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1 points) P*V=P*V 739*250 = 514*V /514 = 359 b. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1 points) 22.4L/mol 4*(1/22.4) 0.179 c. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the vo...