PKB Study guides, Class notes & Summaries

acid - Answer- Arrhenius definition: a substance that has H in its formula and ionizes in water to yield H3O+ base - Answer- Arrhenius definition: a substance that has OH in its formula and dissociates in water to yield OH- salt water - Answer- a reaction between acid and hydroxide base always yields ____ and ____ formation of H3O+ ion - Answer- most of the time a hydrogen ion will find a water molecule to attach itself to HCl HBr HI HNO3 H2SO4 (only loss of first H is strong)...

CHEM 210 Exam 1 Review Questions and Correct Answers, With Complete Solution 2024. What is a BL acid? BL base? Acid is a proton donor while a base is proton acceptor List the 6 strong acids HClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? HA <=> H+ + A- Ka = ([H+][A-])/[HA] What is the eq. for base hydrolysis? B + H2O <=> BH+ + OH- Kb = ([BH+][OH-])/[B] What is t...

if the p-value is greater than 0.1, we generally conclude the data are consistent with the null hypothesis - correct answer true what is the best way to characterize the random error present in a measurement? - correct answer take replicate measurements of your analytes and using the standard deviation and a t-table specify an error bar with a confidence limit statistical interference assesses whether an observed phenomenon in the data can reasonably be attributed to chance or not - correc...

Abstract: Accumulating evidence indicates that obesity is closely associated with an increased risk of metabolic diseases such as insulin resistance, type 2 diabetes, dyslipidemia and nonalcoholic fatty liver disease. Obesity results from an imbalance between food intake and energy expenditure, which leads to an excessive accumulation of adipose tissue. Adipose tissue is now recognized not only as a main site of storage of excess energy derived from food intake but also as an endocrine orga...

CHEM 102 Winter 18 Exam 3 (B) Questions and Answers Potentially useful data: x  2 a 1. Please choose the letter “B” as your answer for this question. 2. Consider the following endothermic chemical equilibrium. What change below would cause an increase in the I2 (g) concentration? 2 NOI (g) ⇌ 2 NO (g) + I2 (g) a) decreasing the temperature b) adding more NO c) increasing the pressure d) adding more NOI e) All of the above. 3. At 25 oC, an aqueous solution has [H3O+]...

CHEM 102 Winter 18 Exam 3 (C) Questions and Answers Potentially useful data: x  2 a 1. Please choose the letter “C” as your answer for this question. 2. Consider the following endothermic chemical equilibrium. What change below would cause an increase in the I2 (g) concentration? 2 NOI (g) ⇌ 2 NO (g) + I2 (g) a) adding more NOI b) adding more NO c) decreasing the temperature d) increasing the pressure e) All of the above. 3. At 25 oC, an aqueous solution has [H3O+...

CHEM 102 Winter 18 Exam 3 (C) Questions and Answers Potentially useful data: x  2 a 1. Please choose the letter “C” as your answer for this question. 2. Consider the following endothermic chemical equilibrium. What change below would cause an increase in the I2 (g) concentration? 2 NOI (g) ⇌ 2 NO (g) + I2 (g) a) adding more NOI b) adding more NO c) decreasing the temperature d) increasing the pressure e) All of the above. 3. At 25 oC, an aqueous solution has [H3O+...

CHEM 102 Winter 18 Exam 3 (B) Questions and Answers Potentially useful data: x  2 a 1. Please choose the letter “B” as your answer for this question. 2. Consider the following endothermic chemical equilibrium. What change below would cause an increase in the I2 (g) concentration? 2 NOI (g) ⇌ 2 NO (g) + I2 (g) a) decreasing the temperature b) adding more NO c) increasing the pressure d) adding more NOI e) All of the above. 3. At 25 oC, an aqueous solution has [H3O+]...

Notes taken on the topic of buffers as taught by Dr. Williamson in CHEM 120 at TAMU. These notes show some examples of RICE tables used for buffers to calculate Ka, Kb, pH, and/or pOH. They then describe and show how to use the Henderson Hasselbalch Equation to calculate the pH or pOH of a buffer solution which is an imperative skill in chemistry. Finally, they describe how else these buffers are sued and other applications.

Everything you need to ace thermodynamic and chemical reactivity class. Formula sheet (cheat sheet), all the formulas, graphs and concepts on a double-sided page that you can use during open book exams/ as a formula sheet. Colour-coded for easy memorization. includes: -ideal gas law and real gas. -Chemical equilibrium -Thermochemistry (first law of thermodynamics, enthalpy and heat, Hess law). -Thermochemistry (second and third laws, entropy, free energy G and spontaneity). -kinetics...