Percent ionization Study guides, Class notes & Summaries

First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers Salts containing which of the following ions are generally insoluble in cold water? a. nitrate b. acetate c. phosphate d. potassium e. ammonium - CORRECT ANSWER C. Phosphate Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? a. Decreasing the volume of the reaction vessel b. Adding a catalyst c. Increasing the volume of the reacti...

Chapter 1 – The Science of Nutrition Multiple Choice Answer, level, page Level: K = knowledge, A = application/critical thinking What Do We Mean by “Nutrition”? (pp. 5-8) a A 6 1. Which of the following ingredients in a box of toaster pastries would contribute macronutrients to one’s diet? a. Water, high-fructose corn syrup, egg yolk b. Niacin, folic acid, sucralose c. Riboflavin, salt, sodium benzoate d. Thiamin mononitrate, soybean oil, sugar c K 5 2. The term “n...

What term refers to an abnormal condition of all or part of the body that makes the body incapable of carrying on normal function? A) disorder B) syndrome C) disease D) virus - Answer C) disease What three qualities must disinfectants used in salons, spas, and medical facilities have? A) bactericidal, sporicidal, and virucidal B) sporicidal, virucidal, and fungicidal C) bactericidal, sporicidal, and fungicidal D) bactericidal, virucidal, and fungicidal - Answer D) bactericidal, v...

CIH Exam Questions with correct Answers 2023 Mist/Fog particle size 5-100 um Smoke particle size less than 1 um Fume particle size less than 1 um (tend to agglomerate into clusters) Breathing Zone NEW - hemisphere forward of sholders with a radius of 6-9" OLD - 2' diameter sphere centered on head Systematic Error Correctable error - malfunction of sampler, instrument, or operator - affects accurancy (not precision) Random Error Unknown/uncontrollable ...

Paper chromatography is primarily separated by Polarity differences, hydrogen bonding Rf formula Distance spot moved / distance solvent moved What functional group forms from a peptide bond? Amide Gas-liquid chromatography Mobile phase is a gas (He) Stationary phase is high-bp liquid adsorbed on solid Compounds with lower boiling points elute first Sn2 reaction a bimolecular nucleophilic substitution reaction Causes inversion of stereochemistry (reverse R ...

What was the principal factor determining the migration of individual components in a sample when performing chromatography? - the relative amount of hydrogen bonding to the stationary phase Rf value - Distance travelled by substance / distance travelled by solvent stereospecific reaction - a special type of stereoselective reaction in which the stereochemistry of the product is dependent on the stereochemistry of the starting material if two different isomer products form, that m...

CAMRT Exam Questions with Rationale 2024 half-life and energy of Tc-99m T= 6hrs 140keV half-life and energy of Mo-99 T=66hrs 740keV and 778keV Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:07 / 0:15 Full screen half-life and energy of I-131 T=8 days 364keV half-life and energy of I-123 T=13hrs 159keV half-life and energy of In-111 T=67hrs 171keV and 245keV Half life and energy of Xenon-133? ...

Catalyst (enzyme) -correct answer A substance that increases the rate of a chemical reaction without being changed itself, lowers the activation energy needed for a reaction Electrolyte -correct answer A substance that is dissolved in solution and some of its molecules split or dissociate into electrically charged atoms or ions Oxidant -correct answer Causes a GAIN of electrons and is REDUCED in a chemical reaction Reductant -correct answer Causes a LOSS of electrons and is OXIDIZED in ...

C The electron configuration of indium, In, is ______. B In general, atomic radii _____. A) increase from left to right in a period and increase down a group. B) decrease from left to right in a period and increase down a group. C) increase from left to right in a period and decrease down a group. D) do not change across a period or a group. E) decrease from left to right and decrease down a group. AD D. g x 1mo/mm x 6.022x10^23/1 mol x #of na atoms Calculate the number of sod...

What are buffer solutions made of? - ANSWER-Weak acid and its conjugate base. weak base and its conjugate acid At the equivalence point what does the volume do? - ANSWER-The volume will double Insoluble bases dissolve in what solution? - ANSWER-Acidic Solutions Insoluble acids dissolve in what solutions? - ANSWER-Basic Solutions What pH is neutral? - ANSWER-pH=7 What pH is basic? - ANSWER-pH>7 What pH is acidic? - ANSWER-pH<7 What is the value of Kw - ANSWER-1.00 x 10^...