In a 0.18 mM aqueous solution of trimethylacetic acid (C₂H,CO,H), what is the percentage of trimethylacetic acid that is dissociated? You can find some data that is useful for solving this problem in the ALEKS Data resource. Round your answer to 2 significant digits.

Calculate the pH of a 0.105 M solution of ethylenediamine (H,NCH,CH,NH,). The pKa values for the acidic form of ethylenediamine (H NCH,CH,NH}) are 6.848 (pKa1) and 9.928 (pK2). pH = Calculate the concentration of each form of ethylenediamine in this solution at equilibrium. [H,NCH,CH,NH,] = M [H,NCH,CH,NH] = М [H;NCH,CH,NH†] =

Which of the following statements best describes the end point of the reaction and when you should stop the timer? Group of answer choices Once the purple color of the initial mixture, caused by the KMnO4, fades After 5 minutes have passed Once the KMnO4 has reacted completely with the malonic acid, turning the solution yellow Once the mixture turns colorless

You are planning to carry out a reaction that produces hydroxide ion. For the reaction to take place at a constant pH, it will be buffered at pH = 4.2. Would it be better to use a formic acid/formate buffer or an acetic acid/acetate buffer? (Note: The pKa of formic acid = 3.75 and the pKa of acetic acid = 4.76.)

Identify all reactant combinations described below in which the 4-aminophenol is the limiting reactant.  A) 0.350 mol 4-aminophenol is mixed with 2.5 mL acetic anhydride B) 0.0200 moles 4-aminophenol is mixed with 0.0250 moles acetic anhydride C) 1.80 g 4-aminophenol is mixed with 1.5 g of acetic anhydride D) 0.0200 moles 4-aminophenol is mixed with 2.00 mL of acetic anhydride E) 2.50 g 4-aminophenol is mixed with 3.0 mL of acetic anhydride   Item at position 3

4. CH₂ -NH, Circle the pairs of organic solids which can be separated from each other by solvent extraction using 2M HCI.* CH₂ CH H.C-C-CH-C-CH CH CH H3C- H.C acid + acid → no reaction base + base → no reaction CH₂ -CH₂ -COOH -COOH CH HC-С-СООН CH₂ сну CH H₂C-C-COOH CH -COOH H.C. H.C- b09) 0) YBW 2 CH₂ ht of -сҢ CH3 H.C-С-соон сна ондул -NH₂ 75 0 986 CH CH -COOH -NH₂

Why does the dehydration of an alcohol more often use concentrated sulfuric acid,  H2SO4H2SO4, as the acid catalyst rather than dilute hydrochloric acid, HCl?   Select one or more:   Hydrochloric acid is too small to effectively react with the alcohol in the reaction.   The additional water solvent from a dilute solution could reverse the dehydration reaction.   Only acids with more than one proton can complete the dehydration reaction.   The presence of the chloride ion could result in a competing substitution reaction.

Could you help me with this? I'm stuck on this question.

▼ T G Part B butylpropylamine Express your answer as a condensed structural formula. Do not include bonds between atoms. 1. 6 H = | ΑΣΦ A chemical reaction does not occur for this question. P Pearson #1 | Copyright © 2023 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy | Permissions Contact Us & U J 8 C K 9 O ? L P 3 f12 { + + 79°F Mostly cloudy ins prt sc delete backspace home num lock ENG 8:21 PM 4/14/2023 end 7 home pa 8

which two of the following will react with weak base; sodium bicarbonate and which two will react with strong base; NaOH and which two will remain neutral. Write chemical reactions as well. COOH benzoic acid MP 122°C COOH o-toluic acid MP 101°C g 2-naphthol MP 123°C OH OH C(CH3)3 p-tert-butylphenol MP 101°C денз OCH3 p-dimethoxybenzene MP 57°C naphthalene MP 80°C