Pkb Samenvattingen, Aantekeningen en Examens

General Chemistry Questions & Answers -Weak Acids and Bases -5 equations to know relating to pKa and pKb - Direct relation of Ka and Kb to pKa and pkB - CORRECT ANSWER - pKa = -log[Ka] pKb = -log[Kb] Kw = 1 x 10^-14 = [H+][OH-] = Ka x Kb pKa + pKb = 14 Larger Ka = smaller pKa = stronger acid Larger Kb = smaller pKb = stronger base **know how to do hess's law** - CORRECT ANSWER - Lesson 11.8 in case you've forgotten 1 atm = ___ torr = ___ mmHg - CORRECT ANSWER - 1 atm = 760 torr = 760...

General Chemistry Questions & Answers (first) ionization energy - CORRECT ANSWER - amount of energy necessary to remove the least tightly bound electron from an isolated atom ∆G - CORRECT ANSWER - changes with changing reaction composition until it reaches zero ∆Gº - CORRECT ANSWER - describes a reaction at on especific temperature,pressure, and set of concentrations a catalyst - CORRECT ANSWER - make a reaction go faster by either speeding up the ratedetermining step or providing an ...

General Chemistry Questions & Answers A 25.0 mL solution of 0.2 M acetic acid (pKa = 4.76) is mixed with 50 mL of 1.0 M sodium acetate (pKb = 9.24). What is the final pH? A) 4.8 B) 5.8 C) 9.2 D) 10.2 - CORRECT ANSWER - B (CHEM257) A 36 gram sample of water requires 93.4 kJ to sublime. What are the heats of fusion (ΔHfus) and vaporization (ΔHvap) for water? A) ΔHfus = -20 kJ/mol, ΔHvap = 66.7 kJ/mol B) ΔHfus = 40.7 kJ/mol, ΔHvap = 6 kJ/mol C) ΔHfus = 6.0 kJ/mol, ΔHvap = 40.7 kJ...

Wc 3 Zuren & Basen. Behandeld o.a. : zurenbasenresonantiestructurenabc-formulepkapkb

CHEM 210 Final Exam Verified Questions and Answers CHEM 210 Final Exam Verified Questions and Answers CHEM 210 Final Exam Verified Questions and Answers 1. if the p-value is greater than 0.1, we generally conclude the data are consis- tent with the null hypothesis: true 2. what is the best way to characterize the random error present in a mea- surement?: take replicate measurements of your analytes and using the standard deviation and a t-table specify an error bar with a confidenc...

State University of New York at Binghamton, Department of Chemistry Chemistry 108, Introductory Chemistry II, Exam 3, Version A 1. A reaction will always be spontaneous if: a. H is + & S is + b. H is – & S is – c. H is – & S is + d. H is + & S is – e. H is + & S is 0 2. In the following reaction, which substance is behaving as a reducing agent? Cr2O72(aq) + 3Ni(s) + 14H+(aq)  3Ni2+(aq) + 2 Cr3+(aq) + 7H2O a. Cr2O72 b. Ni c. H+ d. ...

CHEM 210 Final Questions and Correct Answers, Complete Solution 2024. if the p-value is greater than 0.1, we generally conclude the data are consistent with the null hypothesis true what is the best way to characterize the random error present in a measurement? 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...

1.4. Furan has sp2 hybridization. One of the lone pairs is in a p orbital, and the other is in an sp2 orbital. Only the lone pair in the p orbital is used in resonance. 1.5. (a) No by-products. C(1–3) and C(6–9) are the keys to numbering. (b) After numbering the major product, C6 and Br25 are left over, so make a bond between them and call it the by-product. 1.6. (a) Make C4–O12, C6–C11, C9–O12. Break C4–C6, C9–C11, C11–O12. (b) Make C8–N10, C9–C13, C12–Br24. Break O...

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...

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