4. If 100 mL of a pharmaceutical prepara- tion contains 20 μL of a 50% w/v solution of benzalkonium chloride, what is the percentage strength of that agent in the solution? 4. 0.01% w/v benzalkonium chloride
Q: Which atomic spectroscopy is a more preferred method in the analysis of trace levels (such as ppb…
A: A question based on analytical process that is to be accomplished.
Q: Convert the Fischer projection to the Haworth projection of the a-furanose form by moving the…
A: For the conversion of Fischer projection to Haworth projection we use the following steps of…
Q: Is PERIOD NUMBER ORBITALS GROUP A NUMBER VALENCE Compare your #1 and #2: Which is bigger? Why do you…
A:
Q: Q5.15 Homework Unanswered Convert 5.78 x 102 kWh to kJ. Only include the numerical value in your…
A: 1kWh(kilowatt hour) = 3600kJ (kilojoules) So, 5.78 × 102 kWh =578 kWh Thus, 578 kWh = 2.081 × 106…
Q: For the half reaction for the perchlorate/chlorate (CIO4/CIO3 ), E = 1.201 V. Calculate the…
A: Given that, the half-cell reaction, the standard reduction potential for the perchlorate/chlorate…
Q: 6. How many milligrams of methylparaben are needed to prepare 8 fluidounces of a solution containing…
A: Fluidounce =29.6 mL. Convert 8 fluidounces into to mL as follows: 8 fluidounces*( 29.6 mL /1…
Q: What is the molarity of a solution that contains 4.85 moles of a solute in 750.0 mL of solution?
A: Molarity is defined as number of mole of solute divide by volume of solution in liter. Given…
Q: Determine the temperature (in °C) of a 2.77-mol sample of He gas at 8.11 atm in a container with a…
A:
Q: How much heat will be released when 6.44 g of sulfur reacts with excess O2 according to the…
A: ♦ The given problems are based on the application of Hess's law .Some of the applications are -1.…
Q: 13.10 How many ¹H-NMR signals would you expect to see for this compound?
A:
Q: Au(s) and Cu(s) electrodes in K2SO4 solution. There is a batter attached to both electrodes,…
A:
Q: Which of the molecules below has a trigonal planar molecular geometry? COCI2 H2CO H2O BF3 NH3 CH4
A: This question is related to VSEPR (valence shell electron pair repulsion) theory. It is used to…
Q: For this section we are going to use a different modeling website: chemagic.org. Use chemagic to…
A:
Q: 2. Which of the following has the smallest mass? Choose the best answer. a) an electron and a…
A: Here we have to determine species which has smallest mass among the following given options.
Q: How many milliliters of 8.13 M hydroiodic acid solution should be used to prepare 3.00 L of 0.800 M…
A:
Q: . What is the pH of the solution obtained when 25.0 mL of 0.065M benzylamine, C7H7NH2, is titrated…
A: Given Concentration of benzyl amine = 0.065 M Volume of benzyl amine = 25.0 mL Concentration of HCl…
Q: How much heat (in kJ) is required to vaporize a 3.86-g ice cube at -20 oC? The heat of fusion of ice…
A:
Q: True or False: when water changes from liquid water to water vapor, hydrogen bonds break but…
A: This question is related to intermolecular forces. There are many types of intermolecular forces…
Q: Which one of the following ions is isoelectronic with the oxygen atom? Li2+ Ne2+ Be2- 02- Oc4+
A: Isoelectronic species are atoms and ions that contains same number of electrons.
Q: How do I apply this in the answer chart that was given? in other words how do I write out the entire…
A: Here, we have to find the mass of FeCl3 in 155 mL of 0.762 M FeCl3 solution.
Q: The density of a gas is 1.49 g/L at a temperature of 24 ∘C and a pressure of 0.789 atm. Calculate…
A:
Q: X STARTING AMOUNT 0.400 0.400 L x 0.350 mol KBr 1 L X = 16.7 g KBr 0.350 1 mol KBr X What is the…
A:
Q: Draw the Bohr model of Li, Na, or K: #2 Li Name: Lithium Group 1A Period: 2 Draw one of the…
A: In this question, we have to choose among the two which would have bigger size and explain the…
Q: Consider a concentration cell that is constructed from a 1.0 M iodide solution on the left and a 0.5…
A: A concentration cell is an electrolytic cell that consists of two half-cells with the same…
Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…
A:
Q: A 1.922-g sample of methanol (CH3OH; molar mass 32.04 g/mol) is burned in a constant-volume bomb…
A:
Q: Given the following data, determine the rate constant of the reaction 2NO(g) +Cl, (g) + 2NOCI(g).…
A:
Q: What is a thermonuclear bomb? Group of answer choices A uranium bomb A plutonium bomb A fission bomb…
A: Thermonuclear Bomb : Thermonuclear bomb is also called hydrogen bomb or H- bomb because
Q: Calculate the binding energy of deuterium, 2H1 Show the equation(s) that you apply and report your…
A: Binding energy is the energy released which provided stability to the nuclei.
Q: Macmillan l Draw the product for the reaction in the space provided. H3C- CH3 Ï... CH₂ + H₂ Pd ↑…
A:
Q: Use the image pasted here to answer the following questions. The number of the structure in the…
A: As per the student's request I am solving only '5' and '6'. We know that the glycosidic linkage is a…
Q: 13.7 Would the indicated hydrogens give the same ¹H-NMR signal or different signals? H H3C CH₂ CH3…
A: Nuclear Overhauser effect(NOE): The enhancement of NMR absorption intensity of a nuclear spin when…
Q: Draw the starting material needed to complete this reaction. Ignore inorganic byproducts. Select to…
A:
Q: Glycosaminoglycans (GAGs) are heteropolysaccharides composed of repeating disaccharide units. These…
A: Answer is given below
Q: Aluminum nitrate reacts with sodium hydroxide according the the equation below. When 10.99 grams of…
A: Answer is given below
Q: The first-order reaction A-8 has k-0.210 min 1. If [Alo -0.500 M, how long will it take [A] to equal…
A:
Q: s) Name the following compounds properly, including stereochemistry H₂C Br _H CH3 15…
A:
Q: Predict the starting alkyl bromide that would produce the product shown in the SN1 reaction. Assume…
A: The detailed explanation is provided below.
Q: What do the coefficients of a balanced chemical equation represent? Number of moles of molecules in…
A: Balanced chemical equation is one in which number of atoms on both side of equation are equal. In…
Q: 1. Arrange the following substances in order of increasing mass percent of carbon. a. Caffeine,…
A:
Q: What quantity of heat (in kJ) will be released if 1.20 mol of SrO is mixed with 0.631 mol of CO₂ in…
A:
Q: Which of the following terms best describes the pair of compounds shown: enantiomers, diastereomers,…
A:
Q: Which reagent system (HBr or HBr, H₂O₂) would you use to carry out the following transformations?…
A: In this question, we have to choose which reagent system is needed for the given transformations.
Q: In the preparation of p-toluidine, why is it important to add alkali before extraction rather than…
A: A question based on analytical separation that is to be accomplished.
Q: Use the Conservation of Mass Interactive to answer the question. Consider the reaction. MnS(s) + 2…
A: Here, given reaction is , MnS(s) + 2 HCl(aq) -----> MnCl2(aq) + H2S(aq) • We can say by the…
Q: 2) Consider a water sample in a closed system with CT,CO3=8x10-4 M and pH=8. a) What is the…
A: Given, Ст, соз =8×10-4 , pH=8 (a) Alkalinity of the sample = pOH=14-pH⇒14-8= 6
Q: Which plot indicates that the reaction is first order? Он VIA In [A] Od (4) d) ЩА (sec) Ки о Ко
A:
Q: Draw the major product of the substitution reaction shown below. Ignore any inorganic byproducts. 4…
A:
Q: What is the binding energy of ¹¹¹Sb? Select one: O a. 937 MeV O b. 894 MeV O c. 768 MeV O d. 983 MeV
A: Eb = (Z × mH + N × mn - misotope) × 931.5 MeV/amu Eb = binding energy, in MeV Z = number of…
Q: In which of the following molecules are the indicated protons enantiotopic? Draw the molecule and…
A: Enantiotopic protons are the one which have different signals in an chiral medium.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
- How many (a) millimoles, (b) milliequivalents, and (c) milliosmoles of calcium gluconate (Ca(C6H11O7)2 - m.w. 430) are represented in 15 mL of a 10% w/v calcium gluconate solution?5. A 300.0 mg sample containing Na,CO3, NaHCO3 and NaOH and inert material either alone or in some combination was dissolved and titrated with 0.1000 M HCI the titration required 24.41 mL to reach the phenolphthalein endpoint. And an additional 8.67 mL to reach the methyl red endpoint. Determine the composition of the sample and calculate the percent of each titrated component.In how much volume of diluted sulfuric acid should you dissolve a multivitamin tablet of approximately 1700 mg of Vitamin C to back analyze 10.00 mL of that solution, with 25.00 mL of 0.01 M KIO3 and 0.04 M thiosulfate to use approximately 8-10 mL of titrant ? You have 25, 50, 150, 250 and 500 mL flasks.
- 5. A 300.0 mg sample containing Na,CO3, NaHCO, and NaOH and inert material either alone or in some combination was dissolved and titrated with 0.1000 M HCI the titration required 24.41 ml to reach the phenolphthalein endpoint. And an additional 8.67 mL to reach the methyl red endpoint. Determine the composition of the sample and calculate the percent of each titrated component.B. Solid AgCl (Ksp = 1.8×10-10 ) is dissolved in 1 Liter of water , then 0.585 gm of sodium chloride is added to silver chloride .caſcuſate and decide if soſubility of siſver chlſoride will decreased or increased by this addition and why ? (M.wt of NaCl= 58.5).Aspirin powder = 0.8110g MW of Aspirin = 180g.mol-1 Volume of 0.5N HCl consumed in back titration = 23.50mL Volume of 0.5N HCl consumed in blank titration = 44.50mL Percent purity (USP/NF) = Aspirin tablets contain NLT 90.0% and NMT 110.0% of the labeled amount of aspirin (C9H8O4) What is the calculated weight (in grams) of pure aspirin?..
- An unknown sample containing mixed alkal (NaOH NaHCO or Na,CO) was analyzed using the double flask method, A 250 mg sample was dissolved in 250 m CO3 free water. A 20.0 mL aliquot of this sample required 11.3 ml. of 0.009125 M HCl solution to reach the phenolphthalein end point. Another 29.0 ml aliquot of the sample was bitrated to the bromocresol green endpoint using 31.1 ml of the standard acid. How many millimoles of the components are there in the original solid sample) 0-928 mmol No. 0.0103 mmol NaOH 0078 m N.CO Cannot be determined 012 mol NaC0, 197 minol NaHCO 129 mmol NaOH, 097ml NajcoA 0.5131-g sample that contains KBr (MM: 119.0023) is dissolved in 50 mL of distilled water. Titrating with 0.04614 M AgNO3 requires 25.13 mL to reach the Mohr end point. A blank titration requires 0.65 mL to reach the same end point. Report the %w/w KBr in the sample.A 0.2028 g sample of primary standard grade Na2C2O4 (M.M. = 134.00) was dissolved in 100 mL of 1 M H2SO4. The solution required 22.42 mL of the KMnO4 solution to reach the phenolphthalein end point. Titration of the blank (100 mL of 1M H2SO4) required 0.02 mL of the KMnO4 solution. What is the molarity of KMnO4
- An 800.0 mg sample containing sulfate was treated with a slight excess of Bac vielding a precipitate that contained 4.3 mg of co-precipitated BaCO3. After i and cooling, the precipitate (BaSO4+ BaCO3) weighed 377.0 mg. Calculate th following:1. What is the molar solubility of PbCl2 in a solution of 0.23 M CaCl2? Ksp = 1.6 ✕ 10-5 for PbCl2. 2. What is the Qsp when 32.0 mL of 6.50 ✕ 10-7 M Na3PO4 are mixed with 41.4 mL of 5.50 ✕ 10-5 M CaCl2? Assume the volumes are additive. Ksp = 2.0 ✕ 10-29. 3. What is the Qsp when 61.0 mL of 1.50 ✕ 10-4 M AgNO3 are mixed with 80.0 mL of 5.20 ✕ 10-3 M CaCl2? Assume the volumes are additive. Ksp = 1.6 ✕ 10-10. 4. What [I-1] is needed to start the precipitation of AgI from a saturated solution of AgCl? Ksp = 2.9 ✕ 10-16 for AgI and Ksp = 1.2 ✕ 10-10 for AgCl.The ethyl acetate concentration in an alcoholic solution was determined by diluting a 10.00-mL sample to 100.00 mL. A 20.00-mL portion of the diluted solution was refluxed with 40.00 mL of 0.04672 M KOH:CH3COOC2H5 + OH- → CH3COO- + C2H5OHAfter cooling, the excess OH2 was back-titrated with 3.41 mL of 0.05042 M H2SO4. Calculate theamount of ethyl acetate (88.11 g/mol) in the original sample in grams