8. Which solution is of known concentration that is used to react completely with an analyte? D. aliquot A. standard B. calibration C. stock

Q: solute 0.147 g C6H7NaO6 molar mass 198.11, dissolves in 50.00 mL, absorbance of solution 0.862,…

A: Given that -  Mass of Solute, C6H7NaO6 = 0.147 g  Molar mass of Solute, C6H7NaO6 = 198.11 g/mol…

Q: What advantages and disadvantages does water have as a recrystallization solvent?

A: Recrystallization is used to purify chemicals by dissolving both impurities and a compound is…

Q: 8. What are water baths used for in Part B?

A: The water which is used in the part B of the given experiment is a laboratory equipment made from a…

Q: A student determined her H2SO4 solution concentration to be 0.0610 M.  The actual concentration of…

A: Given information is:    Determined concentration of H2SO4 = 0.0610M             Actual…

Q: A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass…

A: Mass of NaCl = 0.656 g Moles of NaCl = mass/MM    = 0.656/58.5 = 0.0112 mol Molarity = mole/Volume…

Q: 10.00 mL of the Unknown Acid B with a concentration of 0.1205M was placed into an Erlenmeyer flask…

A:

Q: If you choose a serial dilution—what would you do?  Assume that you begin with a 1.0 M solution.…

A: 50% serial dilution translates to,1/50 dilution factordilution factor = initial volumefinal volume =…

Q: Questions: 1) Explain the solubility of acetic acid in water.

A: Since you have posted with multiple questions, as per guidelines we will solve only first question…

Q: For an experiment 33.5mL solution of potassium permanganate with a 1.45 M concentration is needed.…

A:

Q: 27. How many milliliters of 8.00 M sodium hydroxide solution should be used to prepare 2.00 L of…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.

Q: It is important that the correct solution is used for rinsing volumetric glassware. Discuss how your…

A: In laboratory work, it is important to rinse all the glassware before use. These volumetric…

Q: What is fractional distillation and distillation with the use of a fractionating column; how it is…

A: By selective boiling and condensation, it is possible to separate components in a liquid mixture.…

Q: hy do we have to measure the boiling point of distilled water during this experiment?

A: Given : We have to explain why we measure boiling point of distilled water.

Q: Compare the three main purification methods (recrystallization, distillation, and extraction) by…

A: The three main purification methods are recrystallization, distillation, and extraction.. With the…

Q: Why must a boiling stone be added to a solution to be refluxed?

A: The boiling stone is added while refluxing the solution because -

Q: Why must be the primary standard be dried before use

A: A primary standard is a reference solution used to determine the unknown concentration of another…

Q: 10.00 mL of the Unknown Acid A with a concentration of 0.1505M was placed into an Erlenmeyer flask…

A: Given - Volume of NaOH =20.33 mL Molarity of NaOH =0.2213M To find - millimoles of Sodium Hydroxide

Q: Preparing solution. Weigh out Sg of table salt. Dissolve it in 50mL of distilled water in a…

A: The concentration of a compound can be expressed in terms of percent mass per volume.  Write the…

Q: Why should the burette not be completely emptied when dispensing?

A: Since, burette is used for titration to determine strength of a solution.  We can take appropriate…

Q: Describe the steps involved in recrystallization.

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: Why use plastic reagent bottle for the storage of the standard NaOH solution instead of typical…

A: NaOH is a base. It is hygroscopic in nature. Hygroscopic means tends to absorb moisture from air.…

Q: A top-loading weighs to + 0.5 g. How many mg is that?  Please showe step by step solution

A: Since we know that,  1 g = 1000 mg  Given, weight = 0.5 g

Q: How to find weight of HAc in original solution in grams?

A: Given: Concentration of acetic acid(HAc) = 0.5306 N Volume of the solution = 80mL

Q: 65. In this process of testing the solublity of a compound, give the visible result in test tube B.…

A: Correct option : Slightly dissolved in water Explanation : The part of solvent required per part of…

Q: What would the dilution factor for Sample 1 be if 500 µL of the diluted sample from question 5 were…

A: Total volume of the sample after dilution (Vf) = 500 µL + 500 µL = 1000 µL Initial volume (Vi) = 500…

Q: An equation useful in these calculations is: (1st quantity) ?x (1st concentration) ?= (2nd…

A:

Q: How many grams of 50 wt% NaOH (FM 40.00) should be diluted to 1.00 L to make 0.10 M NaOH?

A: In 50 wt% NaOH solution, 50 g of NaOH in 100 g of solution.  In 0.10 M NaOH solution, 0.1 mol of…

Q: In which compound will ammonium phosphate dissolve? Select one: a. carbon tetrachloride b. oil c.…

A: Ammonium phosphate formula is  (NH4)3PO4 Ammonium phosphate is a salt form.  Ammonium and phosphoric…

Q: 1.In using a burette, why is it important (a) to rinse it with a little of the solution it is going…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 12 Which of the folowing is not a reason tora chemtto sample? aTo check the purity of the solvent To…

A: As per our community guidelines we can only answer one question, out of the four questions you have…

Q: What will be the soufflé’s volume after cooking? Show complete solution

A: The pressure of the soufflé’s batter remains same and we need to relate the volume change of gas…

Q: Analyze the effects of contaminants in the gravimetric analysis

A: Gravimetric Analysis : Gravimetric Analysis is the type of analytical method in which quantity of…

Q: A 0.8250 g of soda ash sample was dissolved in distilled H₂O and diluted to 250-mL using a…

A: According to the bartleby guidelines for the multipart questions, I can solve only first three. So…

Q: Can you please solve question 11.72 and 11.74 sub problems and show all the step by step to the…

A: Henry’s Law is given by: Where S is the solubility of the gas at a fixed temperature (M), k is the…

Q: Why do you need to swirl the flask constantly during the titrimetric analysis? a. To look cool…

A: Titration: It is an analytical method to find out the concentration of a solution with a known…

Q: If the 125 mL Erlenmeyer flasks used in this experiment, (Standardization of a Sodium Hydroxide…

A: Molarity of the solution is dependent on the concentration. When the small amount of distilled water…

Q: In the original mixtures, test tube 1 contained magnesium and a zinc compound, and test tube 2…

A: An atom is the simplest unit of matter and the combination of two atoms produces a molecule. For…

Q: Part B - Determination of Mg(OH)2 in Milk of Magnesia Mass of sample 50g Total Volume HCl used 80ml…

A:

Q: In Purification by Recrystallization, why the solution must be filtered while hot?

A: Crystalization is a process in which the crystals i.e solid form of highly organised atoms or…

Q: which procedure will produce 200ml of a solution that is 2.5%by volume alcohol of water?

A: The percentage by volume of the solution is 2.5 %. The V/V % can be calculated by the following…

Q: What is the dilution factor for Sample 1 if 20 µL of extract is added to 980 µL distilled water?

A: Dilution Factor = total volume of solution divided by the aliquot volume

Q: 59) To make a 0.250 m solution, one could take 0.250 moles of solute and add A) 1.00 L of solvent.…

A: The molality can be derived by dissolving the solute quantity in moles into specific quantity (1 kg)…

Q: 5. Percent NaCl in the saturated solution: Show the calculation, including units and sig figs:…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: SM methylamine (CH3NH2). dic acid would have to be added to 150 mL of this solution in order to re…

A: pKa of CH3NH2 is 10.7 mmoles of CH3NH2 = ( 0.305molL-1 • 150mL )  mmoles of CH3NH2 = 45.75mmol…

Q: Solvent Isotonic Hypertonic Hypotonic What is Iodine used to detect? Describe the assay/test. What…

A: Solution- A homogeneous mixture of two or more substance is known as solution.

Q: Why might it be necessary to employ procedures such as the use dilution and in-use tests?

A: Step :1  A use dilution test is the another method for testing the efficacy of the disinfectant.In…

Q: Identification Complete each statement. Write your answer at the end of each question. 92. To…

A:

Q: 51. The substance being analyzed is the: a. Titrant b. Analyte Salt d. Indicator

A: Since you have asked multiple question, we will solve the first question for you. If you want any…