Identify the indicator that can be used at the highest pH. phenol red phenolphthalein alizarin yellow R crystal violet bromophenol blue

Q: Which one of the following acids is the weakest acid? Aspirin pka 3.5 Phenobarbitone pka 7.4 Acetic…

A: The objective of the question is to predict the weakest acid among the given acids.

Q: elect the pair of compounds that could make a buffer in aqueous so O HNO2 and NANO2 O H2O and NaOH O…

A: The question is based on the concept of buffer solution. A buffer is a solution which resist any…

Q: What is the effect on the concentration of ammonia, hydroxide ion, and ammonium ion when the…

A: Le chatelier's principle states that if a reaction at equilibrium is disturbed by changing…

Q: Describe the process of calculating a weak acid–strong base Titration?

A: Titration: Titration is quantitative analysis where concentration and amount of unknown sample is…

Q: Why is it beneficial for aspirin to be buffered?

A: Buffered aspirin contains antacids to neutralize the acid in your stomach that causes upset.The…

Q: What salt will be formed from the following acid base reaction? HNO2 + KOH

A: Acid base reaction: Acid base reaction is a reaction between an acid and a base to produce salt and…

Q: Consider this table of indicators and their properties. Indicator Low pH color Color change pH…

A: Pure water has a pH of 7 at 25o C, so an indicator which has 7 in its colour change range could be…

Q: The value of Ka for phenol (a weak acid) , C6H5OH , is 1.00×10-10 . Write the equation for the…

A: Phenol is weak acid as the given in question so it will deprotonated by the release of H+ and we get…

Q: When a person exercises, muscle contractions produce lactic acid. Moderate increases in lactic acid…

A: The pH of the buffer is given by Henderson-Hasselbalch equation- pH = pKa + log[Conjugate…

Q: Identify the pH indicator below * O hydrogen peroxide O vinegar O phenolphthalein buffer

A: Answer - The correct option is (c) Phenolphthalein - Phenolphthalein, (C20H14O4), an organic…

Q: A solution of a weak acid was tested with the following indicators and the colors noted: Methyl…

A: All acid base indicators have a functional pH range, let' say a to b. Below pH 'a', it shows its…

Q: If one mole of each of the following are dissolved in one liter of water which solution would have…

A: Given: Number of moles of given acids and bases= 1 mole The volume of the solution= 1 L To find: The…

Q: Which of the following is a buffer system? Group of answer choices HCl and NaOH NaCl and NaOH H2CO3…

A: Buffer is made up from weak acid and its conjugate base or weak base and its conjugate acid.

Q: An analytical chemist weighs out 0.118 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: Mass of the triprotic acid = 0.118 g Volume = 250 mL Molarity of NaOH = 0.1100 M Volume of NaOH…

Q: Write a balanced chemical equation with NaOH and ZnCl2

A: Balanced chemical equation :-  A chemical equation is said to be balanced if number of atoms of each…

Q: Titration of a Weak Acid Report Sheet Molarity of NAOH used: 0.100 M Part A. Show calculations for 1…

A: Balanced equation for the reaction of weak acid, HA(aq) and NaOH(aq) or OH-(aq) is: HA(aq) + OH-(aq)…

Q: Write a balanced net ionic equation to explain the observed pH for each of the following solutions:…

A: NH4Cl (aq) + H2O (l) <---------------------> NH3 (aq) + H2O (l) + HCl(aq) Ionic equation is :…

Q: Which of the following is NOT a buffer? Explain your choice. ● CH​3CH​3NH​2– CH​3CH​3NH​3Cl ●…

A:

Q: The pH of 2-methylpropanoic acid is greater than that of 2-chloropropanoic acid. True or false

A: Detail description is given below

Q: The following items are potential problems someone might encounter while performing a titration. For…

A: The molarity of a solution gives the concentration of the solution and is defined as the ratio of…

Q: A substance turns pink in the presence of phenolphthalein. One would predict the pH to be 10

A: Phenolphthalein is a colorless solid which is used as a pH indicator (in solution form) in acid-base…

Q: Which of the following pairs of compounds could be used to create a buffer? Na3PO4 & NaH2PO4…

A:

Q: Select all of the combinations that would produce a buffer solution.     KClO3 and HClO2…

A: Buffer solution has tendency to maintain constant pH upon small amount of addition of acid or base.…

Q: TABLE 16.1 Some Common Acid-Base Indicators Color In Base Indicator In Acid pH Range Thymol blue…

A: a) Here HCOOH is a weak acid and NaOH is a strong base. Since it is a titration of strong base vs…

Q: What is the endpoint of a titration?

A: In a titration indicators are used for the identification of end point. Equivalence point is the…