Q: epared by extracting entrated solution.
A: Given: Drug is Tirofiban Concentration is 0.281 mg/ml Weight of patient is 87 Kg The ordered drug…
Q: Which procedure would give you the diluted solution of HNO3 with a concentration of 0.200 M?
A: The molarity of a solution is given by:
Q: D- How many extractions of 20 ml portions of DCM are needed to extract 96% of caffeine from 200 ml…
A: The relation between the partition ratio and amount left after n-number of extractions is shown…
Q: what would be the implications if the volume reduction is skipped in the recrystallization
A: Recrystallization is a purification technique often employed in the labs. it is based on the…
Q: In a fractional distillation experiment it is important to wrap insulting tape and Al foil around…
A: Wrap the distillation column with an insulated like Aluminium foil insulation bill aloud the vapour…
Q: In glucose estimation using Benedict's Reagent, briefly explain what would happen if the water…
A: In the quantitative estimation of glucose using the quantitative Benedict's reagent, the solution is…
Q: For which titration is phenolphthalein the best choice? Explain your reasoning and support with…
A: Titration is a technique in which a solution of known concentration is treated with a solution of…
Q: In the melting point determination, if the solud is impure, how will it affect the melting point?
A: There are basically 3 state of materials such as solid, liquid and gas. In solis atoms are tightly…
Q: (c) To study the kinetics of iodination of acetone, why starch is used as an indicator just before…
A: Here we are required to provide the reason why starch indicator is not used at the beginning rather…
Q: A student rushed through this experiment, but noted some procedural errors in their lab…
A: Remember, during titration we follow: N1V1 = N2V2 If N2V2 is considered for unknown solution then…
Q: On recrystallization, if the volume reduction step was skipped, what would be the implications?
A: Recrystallization = A purification process, In this process we dissolve a impure solid into a…
Q: What is the relative retention of the two solute?
A: relative retention of the two solute
Q: In a lab experiment, 3.4g of methyl orange product was produced using the following: 2.25g…
A: Methyl Orange is produced from sulphanilic acid ,sodium nitrite, and N,N-dimethylanilin. We have to…
Q: 4. The reflux set-up in the experiment allows prolonged heating of the liquid reactants for them to…
A: In organic chemistry experiment, reflux technique is used used to obtain the product in chemical…
Q: Why Does The Flask Need To Be In An Ice Bath And The Sulfuric Acid Added Dropwise? Synthesis Of…
A: Sulphuric acid is a strong acid which react voilently with water and it is completely soluble in…
Q: What is the expected visual observation when ether and hot, acidic potassium permanganate were mixed…
A: acidic potassium permangnate is an strong oxidizing agent.
Q: Explain why different results are observed when HCl and H2SO4 are added to brine?
A: The different results are observed when HCl and H2SO4 are added to brine because in HCl, due to…
Q: Describe why the inside wall of the flask is rinsed with deionized water during accurate titration.…
A: During accurate titration we need to rinse the inside wall of the flask with de-ionized water…
Q: How might cyclohexane give a false positive when choosing a solvent for recrystallization?
A: Melting point of cyclohexane = 6.47 oC Cyclohexane is not soluble in solvent at high temperature,…
Q: What will be needed for resting a separatory funnel when it is charged (meaning in use)? O beaker…
A: Introduction: We have to tell what will be required for resting a separating funnel.
Q: If you did not completely dry the Erlenmeyer flask before weighing the result, how would that affect…
A: Given : You did not completely dry the Erlenmeyer flask before weighing the result.
Q: Assuming 2-naphtholc acid (from Question # 12) is a solid, how can you check that it is pure after…
A: The impure substance is a mixture. To check the purity of the whether after being separated is done…
Q: What is the active ion in Schiff’s reagent and Potassium permanganate?
A: Schiff's reagent is used to check for the presence of aldehyde in an analyte. It can be used to…
Q: What impurity was likely removed during the recrystallization necessary ?
A: Recrystallization is the most important method of purifying nonvolatile organic solids.…
Q: If the aspirin crystals were not completely dried before the melting point was determined, what…
A: Freezing point depression or melting point depression occurs when a solute (or impurity) is added to…
Q: How can we use a known reaction to preform a presumption test
A: Presumption Test :- Qualitative analysis that allows to identify, or confirm, the presence of a…
Q: What gas equation is used in the Dumas method to determine Molecular weight of the volatile liquid?
A: Interpretation: We have to write the gas equation which is used in molecular weight determination of…
Q: B: Similar to Part A, using 97 mL of an aqueous solution containing 7.22 g of the compound with a KD…
A: w = 7.22 g v = 97 ml portion = 41 KD = 5 n= 2
Q: The reagent that is used in the preparation the sample and does not contain the analyte is called
A: The reagent blank is a solution that contains all the same components as in sample solution but no…
Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…
A: Given that in most of the distillations, the total volume of the liquid obtained is not equal to the…
Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…
A: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…
Q: 5. Write the equation for assay of acetylsalicylic acid. Give the value of stoichiometric…
A:
Q: What is the concentration for vinegar for the 3 trials?
A: Vinegar contains acetic acid, the reaction with NaOH is: CH3COOH(aq) + NaOH (aq) → CH3COONa (aq) +…
Q: Why is concentrated hydrochloric acid used in the flame test and not any other concentrated acid?
A: Certain metals possess tendency to absorb radiations and get excited to greater energy states. Thus,…
Q: If some t-butanol were lost between after it's weighed in before the first run, how would the…
A: It is given that some t-butanol was lost between after its weight in before the first run.
Q: Draw an extraction flow chart for the extraction of a mixture of organic acid and phenol.
A: In this question we have been provided with a mixture of Organic acid and phenol, now we need to…
Q: Fill in the blanks: During the "salting-out" process in an extraction procedure, the replaces the
A: During Salting out during the extraction process there are certain proteins which are dissolved in…
Q: In shake and bake reactions, why might it be beneficial if one of the precursors is volatile?
A: Introduction: Shake and bake is a method to produce methamphetamine drug. As the name suggest, it is…
Q: Calculate the molecular weight from the titration data. What does that suggest about how many nitro…
A: Nitration reaction in a aromatic compound is a electrophilic substitution reaction. Nitro group is a…
Q: In glucose estimation using Benedict's Reagent, justify the necessity of continuously heating the…
A:
Q: What do you notice about the compounds under the melting point column that have negative values?
A: We are given the melting and boiling point of different compounds in the table.
Q: Why must the spots be above the level of the development solvent in the developing chamber?
A: Given statement, The spots be above the level of the development solvent in the developing…
Q: While determining the IN using pyridinium tribromide, What would happen if Student A forgot to add…
A:
Q: If the synthesized aspirin was not dried before melting point determination, what would be its…
A: If the synthesized aspirin was not dried before melting point determination, then some amount of…
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: Why is there a need to immediately titrate the sample solution with the standard sodium thiosulfate…
A: Titration is a method of quantitative analysis in order to determine the concentration of an unknown…
Q: Why is it necessary to pulverize the sample in doing the experiment of melting point?
A: Pulverization: It is the process of grinding or crushing a solid substance in order to get a powder…
Q: As seen on the side, KMN04 solution is purple violet. Purple violet color disappears when added on…
A: First consider the state of Mn in MnO4- In this species the oxidation number of Mn is +7 which is…
Q: Draw flow chart for the extraction of mixture containing a. Acid and Base
A: Given : mixture of an acid and base. To find : Draw a flow chart of acid base extraction. Solution…
Q: As a stabilizer for solutions of ascorbic acid for injection use: A) sodium bicarbonate B)…
A: Sodium metabisulphite is used to stabilize the ascorbic acid for the stabilization. Sodium…
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- What will be the residue and what will be formed at cooler portion of test tubes if the tube containing CuO-sugar mixture is heated?While determining the IN using pyridinium tribromide, What would happen if Student A forgot to add 1% starch solution in the flask? Explain your answerfind Concentration iron(III) thiocyanate ion in-stock solution
- Are the reagents (red text) in the diagram accurate to find the analysis of the unknown salt? Yes or No, and why?In a fractional distillation experiment it is important to wrap insulting tape and Al foil around the length of the fractionating column. Why do you think this is necessary?Assume that charcoal and sugar are the two main impurities in the sample of benzoic acid. Explain how you could perform recrystallization using water toremove each impurity.
- Is there a clever way to dissolve/passivate sodium metal with a liquid (not a simple alcohol, not water), that is safe, slow and elegant?Which of the following would cause a loss of yield and would also change the observed/measured ratio of the two salts? • salts that were not completely dry at the time of weighing • using tap water instead of deionized water • pouring the salt/water mixture into the funnel too quickly so that some of the undissolved solid slips underneath the filter paper and into the filter flask accidentally spilling some of the original salt mixture before adding water to dissolve the soluble salt • forgetting to use a watch glass when boiling so that some salt escapes during the boiling processEstimation of Dissolved Oxygen I want analysis and Precautions for this experiment