What is the role of indicator in determining if the substance is acid or base? (Note that the indicator used was an Eggplant Indicator).

Q: 0.0050 M KOH PH VALUE

A: KOH stands for potassium hydroxide. It is an inorganic compound with the chemical formula of KOH.

Q: Is the time required to Elute substance A, greater if N=1000 or N=2000?

A: N is number of theoretical plates in column Retention time (RT) is a measure of the time taken for a…

Q: What happens when you add a strong base to the solution with a buffer in it?

A: Chemical equilibrium is a state in which change in concentration of reactants and products is…

Q: Identify HCl. strong electrolyte, weak acid nonelectrolyte weak electrolyte, weak acid weak…

A: Introduction: Those molecules that convey an electric charge when dissolved in liquid are…

Q: If a pharmacist needs to prepare a bacterial suspension with a concentration of 2.4x10^2 cfu using 1…

A: A colony-forming unit is the number of viable or alive cells in cell suspension that have the…

Q: If a less concentrated initial solution of socium bicarbonate was used in beaker C, would that…

A: The reaction between an acid and base is called a neutralization reaction. The product obtained is a…

Q: Which Latin word is the word acid derived from? What does that Latin word mean? Why is relying only…

A: The acids called acid because it has few chemical properties.

Q: What is the ideal pH range?

A: higher concentrations of H+ ions

Q: Alcohol can be separated from other volatiles in bloodand quantitated by the technique of…

A: Blood is the primary transport medium of the body of a human being. It transports several components…

Q: A water sample contaminated with chloride ion, how can you estimate the sample purity?

A: Water in its pure form is referred to as the universal solvent. It this  form it is tasteless,…

Q: The test for starch in water is   A. silver nitrate.   B. iodine.   C. barium ions.   D.…

A: Starch is a homopolysaccharide molecule that was composed of alpha-D-glucose units in 1-4 and 1-6…

Q: Why should we study the strength of acids and bases?

A: Acids and bases are 2 very common  terms we ,hear in our daily life. These 2 are present in every…

Q: What is diazepam (Valium)?

A: Answer: Introduction: Diazepam is called as Valium, is a medication of the benzodiazepine…

Q: If the pH of a voledronic acid solution is 5.8, and the voledronate concentration is 9 mM, what is…

A: Henderson Hasselbalch equation can be used to determine the concentration of a weak acid in an…

Q: When conducting a flame test for sodium iodide, is the result positive or negative?

A: An ionic compound is one that is formed between a metal or metalloid and a non-metal. A Flame test…

Q: Which is the stronger acid, ethanol or phenol?

A: An acid is a substance which is sour in taste and releases hydrogen ions when dissolved in an…

Q: In the image above, the substance indicated as B is a(n) ____.

A: Enzymes are biological catalysts that increase the rate of chemical reactions happening inside the…

Q: Ag+ , K+ , Pb2+, Zn2+ : Classify the Bronsted-Lowry acidity of these cations

A: Brønsted–Lowry theory, known as proton theory of acids and bases. It stated  that any compound that…

Q: Which of the following is the weakest acid? Select one: O a. pka=4.02 O b. pka=4.76 O c. pka=3.55 O…

A: The stronger the acid and the weaker the base will be, the bigger the value of Ka. The base will be…

Q: What is the pH of a 0.0032 M solution of NaOH?

A: pH is a scale which is used to specify the acidity or basicity of an aqueous solution. The pH scale…

Q: What is diluted acid

A: Acids are compounds containing hydrogen that can be replaced by a metal. Acid dissolve in water to…

Q: 100 mL of 2.5 X NaOH solution from 50X NaOH solution

A: Given Values: Stock solution concentration (NaOH) = 50 X Final Solution concentration (NaOH) = 2.5 X…

Q: Why is it important to study the strength of acids and bases?

A: Any hydrogen-containing substance capable of transferring a proton (hydrogen ion) to another…

Q: How can a neutral salt be formed from acids and bases?

A: Salts are formed when an acid combines with a base.

Q: Ninhydrin test for amino acids or protein requires that sample test solution should be at initially…

A: Proteins are one of the essential macronutrients for a human body. The building blocks of proteins…

Q: What is the name of this area at the end of the arrow for letter B? - what would you typically find…

A: Digestion is a process that involves the breakdown of larger food particles into smaller food…

Q: What is the pH of the solution?

A: pH is the negative logarithm of the concentration of hydrogen ion (H+ )  in a liquid.it is used to…

Q: Will the given lipid test positive in the Ninhydrin test?

A: Ninhydrin test is used to check whether a given sample contains amines or alpha-amino acids. The…

Q: Why do we want to know the pH?

A: pH is defined as the quantitative measure of the acidity or basicity of aqueous or other liquid…

Q: What happens to pH of buffer solutions when small amounts of acid and base is added?

A: A buffer is a solution containing a strong acid and its conjugate base or a weak bases and its…

Q: What happens when hydrochloric acid is dissolved in water?

A: Hydrochloric acid is a strong acid, on dilution in water the hydrochloric acid will dissociate into…

Q: What is the relationship between particle size and the time it takes for the tablet to dissolve?

A: Relation between particle size and time takes for that tablet to dissolve: ? Tablet size increases -…

Q: Define the following terms: a. hydronium ion b. acid c. base d. Ka e. pKa

A: In the solution, when a compound reacts, there is a formation of the product. In the chemical…

Q: If 10g of salt was mixed in 1L water. What percent solution will this be.

A: According to the question,Mass of solute = 10 grams = 10gVolume of water = 1L = 1000 mili Liters…

Q: If a patient is prescribed 300 mg of potassium chloride, what is the corresponding milliequivalent?

A: Drug calculation is a important aspect in calculating the dose based on the BMI ,BSA ,age and body…

Q: How could you prepare 500 mL of a 6.0 M NaOH solution using solid NaOH pellets? What is the percent…

A: Molar concentration is a measure of the concentration of a chemical species, in particular of a…

Q: What happened to the pH when the cola and borax solution was added to the water? Explain

A: Answer.  When the cola was added to the water, the pH of the water went from neutral to acidic even…

Q: What is the difference between an antiseptic and a disinfectant?

A: Antiseptic and disinfectants are used to kill germs, bacterias which attack from outer environment.…

Q: rochloric acid Lemon Apple Banana Water Baking soda Drain cleaner Ammonia 12 3 14 Most acidic Most…

A: A solution having a pH value below than 7 is known as an Acidic Solution whereas a solution whose pH…

Q: How does the results of the pH meter and the pH paper compare with each other?

A: pH is the concentration of hydrogen ions present in the given solution. The determination of the pH…

Q: FREE RESIDUAL CHLORINE IS 1. Chloramide compounds 2. hypochlorous or chloric acid 3. haloform…

A: Introduction :- The quantity of chlorine that remains in the water after a given period or contact…

Q: In a base, the hydrogen ion concentration is ____ than the hydroxide ion concentration.

A: In case of water, H+ and OH- concentration is equal. As the ionic product of water at 298 K is 1 x…

Q: what is the is the dilution factor when  you add 2 mL ssample of 8 mL diluent?

A: Dilution is a process of changing the concentration of the solution by addition of solvent, which is…

Q: In excess of alkaloidal reagent, did the precipitate formed dissolve or not? What is  the evidence…

A: Alkaloid reagents such as tannic acid, potassium iodide, potassium ferrocyanide, or mercuric iodide…

Q: What is the difference between a tincture and an aqueous solution?

A: Given: Explain the difference between a tincture and an aqueous solution

Q: What is the pH of a buffer solution made by dissolving 0.10 mol of formic acid, HCOOH, and 0.10 mol…

A: Since a weak acid dissociates partially in an aqueous solution, the magnitude of dissociation is…

Q: What quality of zwitterions makes them desirable buffers?

A: A buffer is a solution that can withstand pH changes when acidic or basic components are added. It…

Q: What distinguishes a weak acid from a strong acid?

A: Base and acid both interact with each other and form salt and water. They both are used in everyday…