Ethanol is needed as solvent when preparing phenolphthalein color indicator in volumetric titrations. What class of ethanol best suits the intended purpose? Explain your answer

Q: 2.1 Calculate the pH of 1.0 M HC2H3O2 solution, using Ka = 1.7 × 10-5 .  Begin this calculation by…

A: #Q.2.1: Given the concentration of HC2H3O2 solution = 1.0 M Equation for the dissociation of…

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Q: Mg2+ is precipitated during lime-soda softening as Mg(OH)2(s) rather than MgCO3(s)?    Please…

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Q: Phenol is a functional group that is readily ionized by adjusting the pH of the aqueous solution…

A: Phenol is aromatic organic compound. Which is special class of aromatic alcohol compound.

Q: Mass KHP: 1.977 g Volume of KHP Solution: 100.0 mL Titration: 25.0 mL of unknown concentration NaOH…

A: Given Given mass of KHP = 1.977 g Molar Mass of KHP = 204.2 g/mole Volume of KHP solution =100 mL…

Q: Mola and Rity were tasked to analyze the acidity of a 10.0-mL fermented milk sample diluted with…

A: 0.21 mmol lactic acid in 50 mL = 0.21 mmol lactic acid in 15 mL aliquot The 15 mL aliquot came from…

Q: PRE-LAB QUESTIONS Calculate the volume, in mL, of a 0.50 M NaOH solution that will be required to…

A: The volume (in mL) of 0.50 M NaOH is to be calculated that is required to neutralize the 1.2 g of…

Q: It is a solution of unknown concentration in which a solution of accurately known concentration is…

A: When we study analytical chemistry, titration is a major kind of study which helps in determination…

Q: 1. Which of the following solutions are acidic? Which are basic? Distilled H2O NaCl NH4Cl NaCH3COO…

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Q: Why you should not start a titration with zero mL as an initial volume

A: Hello. Since multiple questions have been posted, the first question shall only be solved in this…

Q: Calculate the percentage CH3COOH in a sample of vinegar from the following data. Sample = 15.00 g,…

A: Given: The mass of the sample is 15.00 g. The volume of NaOH used for titration against acetic acid…

Q: What properties of ethanol permit such readily-available testing of a person's blood alcohol…

A: Given :  What properties of ethanol permit such readily-available testing of a person's blood…

Q: ratio of H3PO4 5. If the concentrated phosphoric acid (H3PO4) is 15.2 M, determine the molar to…

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Q: 44.00 mL of 0.50 M H2S04 reacts with 0.35 M LIOH and reaches the endpoint using bromthymol blue as…

A: Recall the reaction, 2LiOH + H2SO4 ----> Li2SO4 + 2H2O  Molarity of H2SO4=0.50 M , Volume=44.0 ml…

Q: Calculate the volume in milliliters of 0.362 M KOH necessary to titrate 28.38 mL of 0.279 M diprotic…

A: Chemical reaction between KOH and H2SO4:                         2KOH + H2SO4  →  K2SO4 + 2H2O From…

Q: Twenty sodium salicylate tablets labeled 325 mg were dispersed in sufficient water to make 200.0 ml.…

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Q: Draw/illustrate the chemical reaction involved in Benedict’s test and explain the purpose of this…

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Q: 625 nm, which can be used for the spectrophotometric determination of ammonia. ocr -OH • NH,…

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Q: Answer questions a through c: a. A CHEM 1215L student prepares a dilute solution of sodium…

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Q: Calculate the mass of acetic acid in 100ml of both samples in vinegar. given: NaOH vs CH3COOH…

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Q: How does dilution affect association or dissociation of acetic  acid in water?

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Q: A student dissolved 4 drops of an unknown compound in 1 mL of methylene chloride (dichloromethane)…

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Q: The amount of tartaric acid is responsible for the tartness of wine and controls the acidity of the…

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Q: Calculate the percentage CH3COOH in a sample of vinegar from the following data.Sample = 15.00 g,…

A: Given : Calculate the percentage CH3COOH in a sample of vinegar from the following data. Sample =…

Q: A purifying agent is required in sugar industry to clarify extracted cane juices. What class of…

A: Following their extraction from a natural source or synthesis in a lab, organic molecules must first…

Q: Mola and Rity were tasked to analyze the acidity of a 10.0-mL fermented milk sample diluted with…

A: 10.0 mL fermented sample diluted to 250 mL 15.0 mL aliquot of the solution diluted to 50 mL 50 mL…

Q: 4. Explain using equilibrium principles, how the Carbonic Acid/Bicarbonate system regulates…

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Q: 1. Formulate the reaction equation for the neutralization of acetic acid with aqueous sodium…

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Q: What is the role of concentrated HCl ?

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Q: A student performed an acid-base titration in the lab and recorded the results as shown below. Look…

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Q: Mola and Rity were tasked to analyze the acidity of a 10.0-mL fermented milk sample diluted with…

A: