A sterile ophthalmic preparation contains 0.6% besifloxacin (E = 0.08) in a 5 mL container. Calculate the quantity of sodium chloride required for isotonicity.
Q: Using the information below, calculate the percentage w/V of lidocaine (MM (234-34 g/mol) in…
A:
Q: An active ingredient has a relative molecular mass of 498. What mass of this active ingredient is…
A: The number of moles of substance present is calculated as the ratio of the given mass of the…
Q: Of 10.0mg of silver chromate is mixed with 100.0ml of water, how many milligrams of silver acetate…
A:
Q: Describe the preparation of 500 mL of 3.50% (w/v) aqueous glycerol
A: Given: Concentration in %(w/v) of aqueous glycerol solution = 3.50 % And volume of solution = 500…
Q: Which properties would be ideal in selecting the compound to be used as a primary standard for…
A: In quantitative volumetric analysis, hygroscopic, expensive, some purity, solid and stable are the…
Q: Which of the following is NOT correctly related to the parts of paper chromatography set-up? a.…
A: Paper chromatography is a method for separating dissolved substances from one another. The mobile…
Q: Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the…
A: Given that : At 20.0OC, The equilibrium concentration (solubility) of hexanoic acid = 3.66 g/L in…
Q: B. B. How many grams of glucose and of water are in 500g of a 5.3% by mass glucose solution ? 25M…
A: B. B. Given, Mass percent of glucose solution = 5.3% Mass of solution = 500 g Answer 4A.…
Q: In which of the following cases would recrystallization be favored over extraction when purifying a…
A: Recrystallisation is a technique that is used for purifying the non-volatile organic compounds.…
Q: calculate the dilution required to analyse the concentration of paracetamol in a commercially…
A: Molar extinction coefficient (ε) of Acetaminophen at 250 nm = 14 mM-1cm-1…
Q: A solvent passes through a chromatography column in 3.87 min, but the solute requires 7.60 min. What…
A: Answer :- 1) Retention factor (k) = 0.964 2) tfraction in mobile phase = 0.51 3) Distribution…
Q: The pNa of a mixture prepared by mixing 200 ml of 0.00063 M of NaCl and 300 ml of 0.00040 M in…
A: Given: Concentration of NaCl solution = 0.00063 M Volume of NaCl solution = 200 ml Concentration of…
Q: (1/ The volume of an aqueous solution of KBr at 25 °C was measured at a series of molalities, m, and…
A:
Q: Basis for extraction Nernst Distribution Law differences in solubilities of a solid and an impurity…
A: The solution is given below -
Q: What volume (in mL) of the prepared high alcoholic elixir is needed if Rx requires 120 mL of an…
A: Answer: In this question we have to mix two different alcohol solution in such a combination that we…
Q: Using Equation 5.9, show that three extractions with 5-mL portions of a solvent give better recovery…
A:
Q: What is the minimum distribution constant that permits removal of 99% of a solute from 50.0 mL of…
A: Distribution law gives information about the partition of a solute between two immiscible phases as…
Q: What volume (mL) of the prepared low alcoholic elixir is needed if the prescription requires 120 mL…
A: Given: %(v/v) of the final solution = 35 % Volume of final solution required = 120 mL. %(v/v) of low…
Q: Which properties would be ideal in selecting the compound to be used as a primary standard for…
A: A primary standard solution of a compound is used for the standardization of a solution of another…
Q: The mobile phase taken in the TLC jar can be one of the following a mixture of two inert gases a…
A: Pic 1: a solvent or mixture of solvents ( We use solvent like EtOAc or EtOAc and hexane mixture in…
Q: Determination of phosphorous in blood serum gave results of 4.40, 4.42, 4.60, 4.48, and 4.50 ppm P.…
A: The expression of Q test is shown below: Q=xq -xnw where; xq = questionable result xn = nearest…
Q: 1. Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth…
A:
Q: The procedure for the synthesis of menthone indicates that you should use 10 cm³ of 6M sulphuric…
A: Molarity (M) :- The number of moles of solute dissolved in one litre of solution is defined as…
Q: what are key reactions involved in seperation of liquid mixtures by simple and fractional…
A: Introduction: Chromatography and distillation is a technique used to separate the mixture of…
Q: 5. Which of the following is the correct statement for PPM * O (a) g/mL O (b) mg/10³ mL O (c) Kg/L O…
A:
Q: 1- To purify the mobile phase gas in GC we commonly use: a) IEC b) adsorption c) partition d) traps…
A: Note: Here you asked multiple questions in a image, So according to guidelines here is a solution to…
Q: The peak integrations of a chromatogram resulting from a GC analysis of a mixture containing…
A: Area under the curve of GC is correspond to mass of that component.
Q: What is the correlation between distribution coefficient and polarity? There is 0.17 g of benzoic…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: (5) How do you prepare 25mL of a mix solution of 2% (v/v) serum and 10mM EDTA in 1X PBS. You have…
A:
Q: 1. Calculate the Ksp of the following aqueous solutions a) 3.60x10-5M Ag2CO3 b) 4.30x10-3M of Ag+…
A: We have to calculate the Ksp.
Q: In a GC run, dodecane was used as test solute for a 30 m x 250 ?m i.d. DB-5 column. The dodecane…
A: Theoritical plate in chromatography is a key parameter of chromatography. It is a index of coloumn…
Q: The following data were obtained for the determination of Mg in water samples 5.5, 5.7, 5.9, 3.2 and…
A: Generally, the magnesium and calcium metal is determined with the help of the EDTA analytical…
Q: The distribution coefficient, KD = (Cether)/(Cwater) = 3.5 for aspirin at 25 C. What volume of ether…
A: Given that : KD= (Cether)/(Cwater) = 3.5
Q: A chemist is asked to separate the components of a mixture composed of 1.00 g each of the two…
A: The given chemicals to be separated are 2-naphthol (pKa = 9.5) and 2-naphthylmethanol(pKa = 16).
Q: 13.00 mL pFe2+ the equivalence point, V. pFe2+ = 17.50 mL pFe?+
A: The question is based on the complexometric titration of ferrous ions and EDTA. we have to calculate…
Q: The solubility of acetylsalicylic acid in ethanol at room temperature is 80 mg/ml. What is the…
A: Given that , Mass of salicylic acid = 4.5 g Molar mass of salicylic acid = 138.121 g/mol So, moles…
Q: Identify the effect of the condition on the parameters. Write increase, decrease, or no effect. And…
A: A) The test tube used in the determination of the ΔHrxn for nitric acid was still wet with water. […
Q: How efficient is the extraction of caffeine from tea leaves containing 1.0 g caffeine in 80 ml…
A: Caffeine is water soluble but so are some tannins and gallic acid which is formed in the process of…
Q: Provide a complete and detailed separation scheme for the following compounds, you have the…
A:
Q: In 100L of water, there are 30kg of solute. If the distribution coefficient is 4, what is the weight…
A: The extent to which a solute can dissolve in the solvent depends on its polarity. Following the…
Q: Red cabbage anthocyanin extraction 1. Weight of red cabbage is 1438 g. What is the volume of…
A: Since you have asked second questions, we will solve the second question only. If you want any…
Q: An open tubular column with a diameter of 215 µm and a stationary phase thickness on the inner wall…
A: Given:- diameter of open tubular column = 215 μm Unretained solute…
Q: 8. The diffusion coefficient, D, of tetracycline in a hydroxylethyl methacrylate membrane is 8.2 x…
A:
Q: Extraction of the aqueous salicylic acid solutions with 10% ethyl acetate/hexane (density ~ 0.7…
A: As you have posted two independent questions in a single request, we will solve the first question…
Q: Calculate the concentration of stock tetraoxosulphate 6 acid which has mass density of 2.50 and has…
A: In the given question we have to calculate the stock concentration of Tetraoxosulphate(VI).
Q: set-up, e volatile acetc е аcet
A: Given data set: Mass of the empty flask = 351.44 g Mass of the heated flask = 355.02 g Thus, Mass of…
Q: Give the chemical reaction in standardizing Potassium dichromate using standardized Sodium…
A: In standardization of K2Cr2O7 , there are two step in reaction . First K2Cr2O7 is mixed with KI ,…
Q: The mobile phase taken in the TLC jar can be one of the following O a solvent or mixture of solvents…
A: Note : According to our guidelines we are supposed to answer only one question. Kindly repost other…
Q: An analyte with a partition co-efficient of 4.0 is extracted from 10 mL of the aqueous phase (Phase…
A:
Q: Standard Solutions for FENCS2* Ion Beer-Lambert Plot mL of 2.00 x 101 M Fe(NO,)3 in 0.10 M HNO, mL…
A:
A sterile ophthalmic preparation contains 0.6% besifloxacin (E = 0.08) in a 5 mL container. Calculate the quantity of sodium chloride required for isotonicity.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
- 1. Why should the stopper always be removed from a separatory funnel whenever a liquid is being drained through the stopcock?2. The distribution coefficient, KD (ether/water), between ether and water for aspirin at room temperature is 3.5. What weight of aspirin would be extracted by a single extraction with 60 ml of water from a solution of 10 grams of aspirin in 100 ml of ether? Calculate the weight of aspirin which would be removed by three extractions with 20 ml portions of water.Prepare the following solutions: 100.0 mL 0.0500 M stock Ca2+ solution 50.0 mL 0.0050 M working standard Ca2+ solution from 0.0500 M Ca2+If 5 teaspoonfuls of a 10% w/v povidone-iodine solution were diluted to 2 quarts with purified water, what would be the ratio strenght of the solution? (** Please show traditional method and not C1V1=C2V2 method**)
- If 500 mL of a 15% (v/v) solution of methylsalicylate in alcohol is diluted to 1500 mL, what will be the percentage strength (v/v)? a 50% b 60% c 6% d 5% e 10%The distribution coefficient, KD = (Cether)/(Cwater) = 3.5 for aspirin at 25 C. What volume of ether would be necessary to extract 0.95 g of aspirin from a solution of 1.0 g of aspirin in 100 mL of water in a single extraction? Show all calculations.1) 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).
- An active ingredient has a relative molecular mass of 498. What mass of this active ingredient is required to make up 345 cm3 of a solution with a concentration of 0.03 mol dm−3? Give your answer in grams and approximate to 2dp:Which properties would be ideal in selecting the compound to be used as a primary standard for quantitative volumetric analysis?a bottle of 297.6ml of water from a creek at 0 degree celsius in the winter was collected and required 14.05 mL of 10.22mM thiosulfate. Calculate the dissolve O2 and express in mg O2/L. COrrect number of significant figures
- The distribution coefficient, KD (ether/water), between ether and water for aspirin at room temperature is 3.5. What weight of aspirin would be extracted by a single extraction with 60 ml of water from a solution of 10 grams of aspirin in 100 ml of ether? Calculate the weight of aspirin which would be removed by three extractions with 20 ml portions of water.1) 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).Ferric oxide (Fe2O3, density 5 5.24 g/mL) obtained from ignition of a gravimetric precipitate weighed 0.296 1 g in the atmosphere. What is the true mass in vacuum?