Ph and poh - Study guides, Study notes & Summaries

[H+][OH−] = 10−14 - pOH- subtract from 14 pH-look at exponent 4 macromolecules - 1. carbohydrates 2. lipids 3. proteins 4. nucleic acids Acidic - more H+ 1-6 Adhesion / cohesion - Cohesion - ability of water to attract to itself Adhesion - ability of water to cell walls of others ** allows transport against gravity in plants Surface tension ALL 3 DOMAINS OF LIFE HAVE - PHOSPHOLIPID BILAYER ALL LIPIDS - DO NOT DISSOLVE WELL IN WATER *think olive oil in a cup of water alpha linkag...

AP Biology Full Exam Review|A+ Graded Properties of Water -polar molecule -capillary effect (cohesion and adhesion, transpiration) -high specific heat -high heat capacity (heat sink-protects aquatic life from large fluctuations in temp) -high heat of vaporization (sweat cools us) pH -log[H+] pOH -log[OH-] pH + pOH = 14 pH scale below 7 is acidic, above 7 is basic, 7 is neutral BAAD "bases accept, acids donate" protons organic molecules any carbon conta...

AP Biology Full Exam Review|A+ Graded Properties of Water -polar molecule -capillary effect (cohesion and adhesion, transpiration) -high specific heat -high heat capacity (heat sink-protects aquatic life from large fluctuations in temp) -high heat of vaporization (sweat cools us) pH -log[H+] pOH -log[OH-] pH + pOH = 14 pH scale below 7 is acidic, above 7 is basic, 7 is neutral BAAD "bases accept, acids donate" protons organic molecules any carbon conta...

General Chemistry 2 Final Exam Questions and Answers | Latest Version | 2024/2025 | Graded A+ What determines the direction in which a chemical equilibrium will shift when the concentration of one of the reactants is increased? The equilibrium will shift to the right, towards the formation of more products, to counteract the increase in reactant concentration. How can you assess the strength of an acid or base using pH and pOH values? The strength of an acid or base can be asse...

The dipole moment in a water molecule Which statement about hydrogen bonds is NOT true? A) Hydrogen bonds account for the anomalously high boiling point of water. B) In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules. C) Individual hydrogen bonds are much weaker than covalent bonds. D) Individual hydrogen bonds in liquid water exist for many seconds and sometimes for minutes. E) The strength of a hydrogen bond depends on the linearit...

CHEMISTRY PRAXIS Practice Exam Questions And Answers (Updated And Verified) What is the negative log of 1 X10⁻⁷ - answer7 When [H₃O⁺] = [OH⁻] the solution is acidic or basic or neutral - answerneutral The concentration of H₃O⁺ and OH⁻ in pure water at 25°C - answer1X10⁻⁷ Kw - answer1X10⁻¹⁴ pH + pOH = - answer14 What is the concentration of Hydrogen ion when the pH is 2 - answer1X10⁻² Using the - log [H⁺] or - log [H₃O⁺] helps you find the - answerpH U...

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...

MCB 2000 Exam Questions With 100% Correct Answers Brownian motion - answerthe movement of molecules powered by random fluctuations of environmental energy Brownian motion of what molecule initiates many biochemical interactions? - answerwater Is water polar or non polar? - answerpolar Polarity enables what type of. bonding between H2O molecules? - answerhydrogen bonding Polarity of water accounts for what? - answerthe cohesiveness of water and its ability to dissolve many biochemicals. ...

MCB 2000 Exam Questions With 100% Correct Answers Brownian motion - answerthe movement of molecules powered by random fluctuations of environmental energy Brownian motion of what molecule initiates many biochemical interactions? - answerwater Is water polar or non polar? - answerpolar Polarity enables what type of. bonding between H2O molecules? - answerhydrogen bonding Polarity of water accounts for what? - answerthe cohesiveness of water and its ability to dissolve many biochemicals. ...

Arrhenius acid rule - correct answer a chemical compound that increases the concentration of hydrogen ions, H+, when dissolves in aqueous solution Arrhenius acid example - correct answer HCl. H3O+ Arrhenius base rule - correct answer a substance that increases the concentration of hydroxide ions when it dissolves in aqueous solution Arrhenius base example - correct answer ...