K QRSTU v Q2b: Serial Dilution (M,V=M,V2) Dilute aliquots of the previously made solution solution aliquot Concentration #: (mL) (mL) (Hg/mL) 5000 to make the next. Q2b 1 2.000 10.00 5.000 10.00 3 2.000 10.00 4 5.000 10.00 T3 T4 *
Q: Jody, a medical assistant in a small clinic, ran out of surface disinfectant while cleaning the…
A: It is a common practice to receive cleaning solutions and surface disinfectants as concentrates from…
Q: Well 1 contains 20 uL of serum. Wells 2-6 contain 90 uL of water. What is the final concentration of…
A: Amount of serum in well 1 = 20 uL amount of water in well 2-6 = 90 uL Amount of serum to be…
Q: (2) jubai what is the Normal concentration of a solution that is 4 percent KHSO4 by weight and has…
A: Normality: The number of grams equivalent of the solute dissolved in 1 L of the solution is known as…
Q: A. Standardizatlon of thlosulfate solution Trial 1 Trial 2 Trial 3 Initial volume of thiosulfate…
A: Molarity = number of moles of solute / volume of solution We are given data for initial and final…
Q: Reading for the unknown solution: Trial 1: 7.3 Trial 2: 6.8 Trial 3: 7.3 Reading for the…
A: Normality of AgNO3 (N1) = 0.02 Volume of water sample (V2) = 20 mL It is desired to calculate…
Q: The volume (in L) of water needed to dilute 3 liters of an Acetic Acid aqueous solution (SG50=1.2)…
A: The Solution from one concentration to another concentration can be converted to changed by help of…
Q: What will be the new boilng point of 297ml benzene (Kb = 2.53 °C-Kg/mol; Bp 80.1°C) when mixed with…
A:
Q: 7.At what temperature will 50.0 grams of water freeze if 8.75 grams of sucrose, C12H22O11, a…
A:
Q: 5-7: A 10.34 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL,…
A: 10.34 molaLI + NO3 SO1 = 10.34 mole of HNO3 in 1kg of H2 O. 10.34 mole of H NO3 = 10.34 x 63 =…
Q: Percent by Mass mass of solute_ × 100 mass of solution Percent by mass equals the mass of the solute…
A: Given : Mass of solute i.e DTN = 25 mg And mass of solution = 1000.0 mg
Q: Part A Are the following solutions isotonic, hypotonic, or hypertonic compared with physiokogical…
A:
Q: 4. A. Identify the set-up: B. Function: organic H.O HO HSO OH snoonbe 15. A. Identify the set up: B.…
A: A. The setup shown in figure is separation by funnel. B. FUNCTION Basically this separation…
Q: Gypsum (CaSO4) is a common percipitant in water desalination. CaSO4 Ca2+ + SO42- where…
A: The provided reaction is- CaSO4(s) <=> Ca2+ + SO42- Provided Ksp= 10-4.6 Or, Ksp= 2.512…
Q: one Trial two KIO3 solution taken (mL) 1.70 16.5 Moles of KIO3 1.06 x 10^-3 1.06 x 10^-3…
A: We have find out solubility and solubility product of Ca(Io3)2 for first and second filtrate.
Q: grams of glucose C12H22011 are dissolve 1360grams of water. а. 0.00 b. 0.20
A: Molality is defined as number of solute present in 1000 gm of water. Mole= MOLality×mass of…
Q: The partial molar volumes of acetone and chloroform, in a solution in which the molar fraction of…
A:
Q: 5-7: A 10.34 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL,…
A: Ans 5: The molality of a solution is defined as the number of moles of a solute present in 1 kg of…
Q: Note: Kindly provide a solution pls. The answer is already provided. Thank you! 1.20 A high…
A: Answer is attached below
Q: b. How would a student prepare 25.0 mL of 40.0% standard solution from a 100.0 % stock solution.…
A: The initial concentration of the stock solution is = 100 % The final concentration of the standard…
Q: HERMODYNAMICS DATA lute used Bocum Mitrate (BalNoz)z olecular weight of solute Imel BaCNsz)z…
A: Interpretation : From the data given we can see that the volume of water required to dissolve fixed…
Q: Your teacher asks you to dilute 6.0 M HNO3 (M1) to 250. mL (V2) of 1.0M HNO3 (M2). What volume (V2)…
A: Given Molarity(M1) = 6.0 M Volume (V1) = ? Molarity (M2) = 1.0 M Volume (V2) = 250.0 mL
Q: Please help me with my hw. Please tysm❤️ ACTIVITY: Solve for the following. Show complete…
A:
Q: A solution is prepared by mixing 25 ml pentane (CsH12-d-0.63 g/cm) with 59 ml. hexane (CgH14, d-0.66…
A: Volume of pentane = 25 mL Density of pentane = 0.63 g/cm3 Mass of pentane is: Density =…
Q: 11.A Study of Intermolecular Forces of Attraction Anna Divi, a young and ambitious researcher, is…
A: Given: Break temperature = melting point = 54 oC Arrest temperature = freezing point = 51 oC
Q: Data Collection Mass of 2 Vivarin tablets (g) 0.728 Mass of crude caffeine (g) 0.567 Mass of…
A: Solution Caffeine may be a central system (CNS) stimulant of the methylxanthine category. it's the…
Q: How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose…
A: The mass percentage of the solution is = 5.2 % The amount of sucrose needed is = 18 g The amount of…
Q: 14406e994a5937753d2#10001 Constants I F olutions ved solute? 25.0 g solute in 0.325 M NaF Express…
A:
Q: Q3/The solubility of sodium chloride NaCl in water at 290 K is 35.8 kg / 100 kg of water. Express…
A: Given that: solubility of NaCl = 35.8 Kg/100 Kg Molecular weight of water = 18.016 g/mol Molecular…
Q: Consider 2 aqueous solutions: H2O/NaCl and H2O/CH3OH. Which one will exhibit a…
A: Raoult's law states that a solvent's partial vapour pressure in a solution (or mixture) is equal or…
Q: A 112.7 kg man drinks 1.0 L or 1.0 kg of liquor that is 35.2% (v/v) alcohol. What is the alcohol…
A: Given that Weight of a man = 112.7 Kg Amount of liquor he drinks = 1.0 L = 1 Kg Weight of man after…
Q: below? d6-DMSO solution -a.55 -G.45 -0.35 La30 La2s -0.20 Lais 0.00 3.05
A: The characteristic peak is at 4.7ppm which is due to strong dis
Q: 10.0 mmol of sucrose (M = 342.3 g mol-1) are fully dissolved in 100.0 g of solvent: water and carbon…
A: Interpretation: To calculate a) freezing point depression of (i) water (ii) CCl4. b) osmotic…
Q: 0.02 M NaOH reagent was standardized using 0.1000 g Potassium hydrogen phthalate (204.22 g/mol) and…
A:
Q: A solution contains 6 umol Na2SO4 in 284 ml. How many ppm Nat does it contain? A.W Na=23 S=32 0=16…
A: The concentration in ppm is calculated as the ratio of grams of solute and the volume of the…
Q: Cuen Catcouim Chloride Solubility ŏ 0.459 / 100m2 of Solution Find the ksp of CaCl₂ ? til 9.9x10-5
A: The Ksp or solubility product constant is the equilibrium constant for the dissociation of a solid…
Q: What is the experimentally determined %(m/v) of the BaCl2 solution? Volume: 25.0 mL Mass BaCl2:…
A: Concentration of an unsaturated solution is expressed as mass of solute dissolved per volume of…
Q: Part A: Volume of Cyclohexane mL Mass of cyclohexane (d= 0.7786 g/mL) 6.0 Freezing Point of…
A:
Q: Calculate either [H3O+][H3O+] or [OH−][OH−] for each of the solutions at 25 °C.25 °C. Solution A:…
A: For an aqueous solution at 25oC, we can write: [H3O+][OH-]=1.00×10-14 M2 .................…
Q: mL of H2SO4 solution 75 (specificgravity =1.18) containing 49% H2SO4 (w/w) is diluted to 590 mL.…
A: Given information-: Volume of solution = 75 ml ( V1) Specific gravity = 1.18 H2SO4 (w/w) = 49 %…
Q: You have a 5.0 ml sample of a protein in 0.5M NaCl. You place the protein/salt sample inside…
A:
Q: Need help ASAP!! thanks! The minimum volume of boiling water is used to dissolve 1.50 g…
A: As solublity of acetanilide in boiling water is 5g/100mL. It mean Amount of boiling water require…
Q: Example: Calculation the weight of barium iodate Ba(IO3)2 if it dissolved in 500mL of distilled…
A: Given data volume of solution = V = 500 mL = 0.500 L molar mass of Ba(IO3)2 = 487 g/mole Solubility…
Q: Post Lab Questions 1 A student performed a freezing point determination for a solution with the…
A: Since you have posted more than one question , we are doing first one for you. To do the rest repost…
Q: DATA Tute used Bocum Nitrate (BalNoz)z Imel BaCNSs)z 261.337glnol 2.0 261.337g/mol 20g 0077moles ams…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Observations: Burette Reading (ml) Volume of KCrz07 solution (m) volume of Naso solution (mi) (Final…
A: Given: Normality of potassium dichromate solution ( K2Cr2O7) = 0.025 N Volume of potassium…
Q: Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g of salicylic…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: What is the freezing point of a solution containing 586 g glucose in 2,211 g water. Molar mass…
A:
Q: 250 mL of 1% m/v Na2CO3 (MW = 105.99 g/mol) was found to have a density of 1.05 g/mL at 25oC. Find…
A:
Q: What is the mole fraction toluene in a solution made by dissolving 5.00 g of toluene (C7H8) in 39.0…
A: Mole fraction is a ratio and therefore it do not have unit. The sum of mole fractions of all the…
Q: A solution contains 4.50 moles of water, 1.05 moles of sucrose (C12H22O11), and 1.20 moles of…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Step by step
Solved in 2 steps with 2 images
- 1. Order: isoproterenol 2 mg in 500 mL D5W to infuse at 15 mL/hrPatient weight: 20 kgHow many mcg/kg/min is the patient receiving? (Round to the 2nd decimal place/hundredth place1) How many milliliters of 70% ethanol and 20% ethanol must be mixed to prepare 500ml of 30% ethanol? 2) A gaseous blend of nitric oxide and nitrogen (NOmax) contains 0.09% v/v nitric oxide (NO) and 99.92% v/v nitrogen. Express the strength of nitric oxide in PPM (round to whole number) 3) The ratio strength of a 10mL vial of neostigmine methylsulfate injection USP is 1:1500.Calculate the amount of neostigmine methylsulfate in milligrams contained in the 10mL vial. (Round to the whole number).Prepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%
- Standardization of Sodium Thiosulfate Solution Primary Standard used: Potassium Dichromate Formula mass of 1o standard: __________________ % Purity of 1o standard: 99.80% Trials 1 2 3 Weight of K2Cr2O7 (g)Weight of K2Cr2O7 (g) 0.0315 0.0331 0.0380 Final Volume Reading Na2S2O3 (ml) 27.50 27.50 34.90 Initial Volume Reading Na2S2O3 (ml) 1.10 0.00 1.00 Net Volume Na2S2O3 used (ml) Molarity of Na2S2O31. You give your home health patient an unopened 500-mL bottle of guaifenesin and tellthem to take 2 teaspoons 4 times a day as ordered. They ask you how long the bottlewill last. 2. You are shadowing a nurse during a clinical who receives an order to adjust the infusionrate of a pump so that 1.6 mg of lidocaine are being delivered per minute. Hanging is a100 mL piggyback containing 0.4 grams lidocaine, a 0.4% solution. How many mL perhour should the piggyback be set to deliver? How long will the piggyback last? 3. Phenobarbital 180 mg/m 2 /24 hours given every eight hours is ordered for a childwhose BSA (body surface area) is 0.29 m 2 . How many mg will you need if the child willbe on the medication for 10 days? 4. You are going to mix a 1:10 bleach solution with water to make 500 mL of a 1:35 bleachsolution. How much 1:10 bleach solution should you use?(I recommend using the C1V1=C2V2 formula) 5. As a home health nurse you need to help a client make…hjhdg with solution sdf
- I would need help with these questions. The method referenced above was followed by a student and she got the following results: Caffeine Std. Conc. (ppm) Absorbance 100 1.806 50 0.899 40 0.724 30 0.545 20 0.365 10 0.183 Further, she analyzed an unknown sample and she got the following results: Sample # Absorbance 1 0.398 1. Graphically find the concentration in ppm and then calculate in mol/L of Caffeine in Sample #1? 2. Which solvent was used to extract Caffeine and why? Why is it necessary to do extraction three times? 3. Cuvettes used in this experiment were made from which material and why? 4. At what wavelength the Absorbance was measured?What is the molarity of a concentrated solution of sulfuric acid with a specific gravity of 1.84 and 95.0% by weight sulfuric acid? specific gravity = density of substance at certain temp/density of water at 4 degrees C the density of water is 0.999973 g/mL at 4 degrees celsius. Describe how to prepare 3.0 L of 0.100M. I will pipet ______ and add this to 200mL water. The solution will be stirred and diluted to 3L with water.How would you prepare 75 mL of an H2SO4 solution at 20% in weight (density=1.1394 g/mL, richness=227.9 g/L) starting from the commercial H2SO4 solution (98%, density=1.8361 g/mL, richness=1799 g/L)? Please choose among the most appropriate procedure which better describes the preparation of the previous diluted H2SO4 solution: Select one or more: a. Take the required volume of commercial H2SO4 solution with an adequate pipette, pour it into a graduated flask and add water up to the final volume (75 mL in this case). Homogenize the flask by stirring it gently. b. Take a beaker and put about 40 mL of distilled water. Then take the required volume of commercial H2SO4 solution with an adequate pipette and pour them over the beaker. Let the solution be warm and pour the mixture into a graduated flask and add water up to the final volume (75 mL in this case). Homogenize the flask by stirring it gently. c. Take a beaker and put about 40 mL of distilled water. Then take the required volume…
- Using dimensional analysis, find the mass of acetylalicylic acid in one tablet of aspirin. The grams of aspirin used in a titration is .325g before being dissolved in 10mL of water and then added to a base, NaOH, with a molarity of .01M and a volume of 10.1 mL. In Chem2.png, the actual question is boxed in red Video used for titration assignment (Not needed for question): https://www.youtube.com/watch?v=x9jgjdizTaYA 18 g of unknown organic sample was dissolve in 756 mL of benzene. The boiling point of benzene was increased by 3.36oC. As the first step of analysis, determine the moecular weight of the unknow sample? Kb of benzene= 2.64oC/m Bb of benzene = 80.09 oC density of benzene = 0.874 g/mL at 25 °C Answer in whole number, no units required.A 60-year-old woman who weighs 75kg requires a loading dose of an antibiotic to treat an infection. A plasma concentration of 4.5 mg/L of the antibiotic needs to be achieved for optimal therapeutic effectiveness. The volume of distribution (Vd) of this antibiotic is 0.2 L/kg. The salt factor (S) is 0.6 and bioavailability fraction (F) is 1. The antibiotic is available as a 100 mg/mL infusion.Loading dose = Amount of drug in the bodyBioavailability (F) x Salt fraction (S)Amount of drug in the body = Target conc. (C) x Volume of distribution (Vd)How many millilitres of antibiotic infusion need to be administered?State your answer to 1 decimal place.unit- ml