hat mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4. Please indicate the full solutions
Q: How many moles of EDTA (C10H16N2O3) do you have in 785µl of a 74MM EDTA solution (Mr(C10H16N203) =…
A:
Q: The protein concentration of a known standard is 100mg/mL If you prepared a serial dilution, mixing…
A: The process of reducing the concentration of a solution by adding more solvent is known as dilution.…
Q: How many grams of calcium chloride (CaCl2; molecular weight = 111 g mole−1) would you dissolve in…
A: Molar concentration is a measure of the concentration of solute in the solution per unit volume.…
Q: You have a 62% dextrose solution. How many mL will give you 35 g of dextrose?
A: Carbohydrates are molecules that include carbon, hydrogen, and oxygen and have the formula (CH2O)n.…
Q: What mass of potassium nitrate KNO3 should be added to 255 g of water to prepare a 15% (m/m)…
A: Potassium nitrate is a chemical compound with the chemical formula KNO3. It is an ionic salt of…
Q: 75 mL of 0.2 M NaOH were added to 100 mL of 0.1M aspartate solution, pH=pl. What is the new pH? pKa…
A: The titration of the amino acid with a strong base like NaOH results in the loss of protons in a…
Q: Calculate the pH of the following buffers containing; 2.95M HC2H3O2 and 1.5M NaC2H3O2 ka = 1.8X10 ka…
A: According to Handersen Hasselbalch equation pH can be calculated using the following formula pH= pKa…
Q: Potentiometric titration curve is given below, which is obtained during the potentiometric titration…
A: Asked : Question related to the shown titration curve x,y represent Volume of KOH, pH of solution…
Q: Determine the pH for the following solutions. {H3O+}=2.4x10^-2 M
A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…
Q: As a technician in a large pharmaceutical research firm, you need to produce 200. mL of 1.00 M…
A: Given Values: pH of the potassium phosphate buffer required = 6.96 pKa value of the potassium…
Q: You need to prepare an acetate buffer of pH 5.43 from a 0.621 M acetic acid solution and a 2.95 M…
A: At equilibrium 0.40875 - x moles of acid x moles of its conjugate base. Initial moles of CH3COOH…
Q: How much sodium formate (HCOONa, 68.0069 g/mol) do you need to add to 400. mL of 1.00 M formic acid…
A: Given: Volume of formic acid = 400. mL pH=3.500 Ka = 1.77 x 10¯4 To calculate: Mass of sodium…
Q: What is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass =…
A: When the ratio of the number of moles of solutes and per litre solution occurs, then the compound's…
Q: 439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide…
A: Given Values: Volume of HCl = 439 ml The concentration of HCl = 0.270 M Concentration of NaOH =…
Q: You have 150 g of dextrose available and you need to compound a 20% solution. If you use the entire…
A: When we describe a concentration as a percentage without specifying the type of formula, we imply…
Q: You are supplied with the following: NaCl (Mr = 58.443 g/mol) 2.5 M Tris-Cl, pH 8 oplossing /…
A: Given Values of the stock solutions to prepare digestion buffer are as follows: NaCl (Mr = 58.443…
Q: For an acid HA, the concentrations of HA and A are 0.075 and 0.025, respectively, at pH 6.0. What is…
A: The value of pKa is used to indicate the acid strength. pKa is a negative log of Ka value or the…
Q: Using your calculated concentration from the graph (in mol Cu2+/L) and the concentration of the…
A:
Q: You are asked to prepare 50 ml of a 1:100 rifampin (rifadin) and you have in stock a 1:20 rifampin…
A: Rifampin (Rifadin) is an antibiotic used to treat bacterial infections like leprosy, tuberculosis…
Q: 50X TBE is 87 mM Tris-borate and 4 mM EDTA at pH 8.3. What is the molarity of each of the chemicals…
A: Given In 50X TBE 87 mM tris-borate 4 mM EDTA pH 8.3
Q: Determine the mass of baking soda (84 g/mol) needed to completely react with 531mL of vinegar.…
A: Acid and base react to produce salt and water. In some reactions, gas may also be released (hydrogen…
Q: What is the m/v % concentration of a solution of LiCl with a density of 2.07 g/mL in 40.0 mL of…
A: Given Values: Mass or weight of LiCl = 2.07 grams The volume of the solution = 40 ml The density of…
Q: 5. A 0.8720 g sample consisting solely of sodium bromide and potassium bromide yields 1.505 g of…
A: NaBr is sodium bromide KBr is potassium bromide AgBr is silver bromide Molecular weight, Na=23…
Q: If I have a 20ml stock solution of BSA with a BSA concentration of 0.2%. How can I make two other…
A: The concentration of the stock solution of BSA is 0.2%. Percent solution is the mass of solute…
Q: For a weak acid with a pKa of 6.0, calculate the ratio of conjugate base to acid at a pH of 5.0
A: The Henderson-Hasselbalch equation helps to describe the derivation of pH as a measure of acidity in…
Q: A 5 ml vial of hydrocortisone is having 2% (w/v) concentration. How many vials will be required, if…
A: KEY WORDS :- Formula for vial required = Dose required to prepareDose in hand×quantity
Q: Calculate the fractional charge on ASP at pH 3 using the following pKa values (1. 9.90, 3.90). Write…
A: A total of 300 amino acids are present in the biological system out of the 20 are part of…
Q: The formula for a sports rub cream is given in the literature as follows: Methylsalicylate 15 mL…
A: Given that the formula for sports rub cream Methylsalicylate = 15 mLMenthol = 10 gEucalyptus oil = 1…
Q: How many milliliters of 0.1M aqueous Sodium Hydroxide solution can be prepared from 10 gm ?of Sodium…
A: The molarity (M) is the amount of a substance dissolved in a certain volume of a solution. It is…
Q: The solubility product of a metal hydroxide M(OH)2 is 8.65 × 10-6. What is the molar solubility of…
A: Ionic molecules are formed by the loss and gain of electrons to form respective positive and…
Q: How many grams of CuSO4 would you use to make 1 L of an 8 g/L CuSO4 solution?
A: Given Values: Volume = 1 L Concentration of CuSO4 = 8 gL
Q: One liter of a 0.1 M Tris buffer (pKa of Tris = 8.3, see Table 2.4) is prepared and adjusted to a pH…
A: Given Values: pKa of tris = 8.3 pH of the buffer = 2.0
Q: To make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW:…
A: Convert the constituents in grams by multiplying with the respective molarity to convert grams per…
Q: Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final…
A: The buffer solution is a solution which resists any change in pH on addition of small amounts of…
Q: How many grams of NaCl are required to prepare 100 mL of a solution of 1 M NaCl? (NaCl molecular…
A: Introduction Solution using the formula : Molarity=moles of soluteVolume of solution(in L)=nVAlso,…
Q: Describe the preparation of the following solutions include all mathematic calculations and…
A: Solution is a homogeneous mixture of solute and solvent. Concentration of solution is the amount of…
Q: given a stock solution of 10% dextrose, how would you make 5 mL of a 0.9% dextrose solution? find mL…
A: Given Values: The concentration of the stock solution of dextrose = 10% Concentration of the final…
Q: How many moles of KBr are there in 89.5 mL of 0.150 M KBr?
A: Molarity can be stated as, it is the number of moles of solute which is dissolved per liter (L) in…
Q: TE buffer consists of 10 mM of Tris-Cl, pH 7.6 and 1mM of EDTA, pH 8.0. You need to prepare 3L of TE…
A: Given Values: The concentration of the stock solution of Tris-Cl = 500 mM The concentration of the…
Q: Refer to the following titration curve below: 13 12 11 10 7 5 4 3 2 4 6 10 12 14 16 18 20 22 24 26…
A: Proteins are unbranched polymers constructed from 22 standard α-amino acids. They have four levels…
Q: The formula for a ciprofloxacin otic drop is given in the literature as follows10: Ciprofloxacin…
A:
Q: An unknown mixture is known to contain only Ba(OH)2 (MW=171.34 g/mole) and NaOH (MW=40.0 g/mole).…
A: Ionic compounds are compounds that are made by the loss and gain of electrons between the…
Q: Three buffers are made by combining a 1M solution of acetic acid and a 1M solution of sodium acetate…
A: Given Values: Ka of acetic acid = 1.7×10-5 The concentration of acetic acid stock solution = 1 M The…
Q: What is the pH of the following buffer mixtures? (a) 100…
A: Given values: (a) Volume of acetic acid = 100 ml Concentration of acetic acid = 1 M Volume of sodium…
Q: The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is…
A: Clove oil has been used to help and resolve problems with stomach upset, pain and respiratory…
Q: Calculate the number of milliliters (mL) of a solution which contains 16 g of BaCl2 per liter which…
A: Introduction Amount of sulfur=12% in 0.60g=12100×0.6=0.072gMolar mass of BaCl2=208.23g/molatomic…
Q: Concanavalin (ConA) is a 25.5KDa protein with pl of 4.7 and optical absorbance (A 0.1% 289) of 1.14.…
A: Proteins are polymers of amino acids with specific molecular weight and pI (isoelectric point, pH at…
Q: You are supplied with the following: NaCl (Mr = 58.443 g/mol) 250 mM Tris-Cl, pH 8 solution (1…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4.
Please indicate the full solutions.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4Thimerosal Tincture USP contains 0.1% w/v thimerosal and 50% v/v ethyl alcohol. If the cap is left off of a 15-mL bottle of the tincture, and the ethyl alcohol evaporates leaving a final volume of 9.5 mL, what is the concentration of thimerosal in the evaporated solution expressed as a ratio strength?Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate (C22H36N2O5S.HCI.H₂O MWt=495.1) at 0.281 mg/mL in a concentrated solution. A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.) Answer:
- 439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide solution. What volume of base solution is required?You need to prepare an acetate buffer of pH 5.43 from a 0.621 M acetic acid solution and a 2.95 M KOH solution. If you have 730 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.43? The pKa of acetic acid is 4.76. Be sure to use appropriate significant figures.Tirofiban (C22H36N2O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281 mg/mL in a concentrated solution. (C22H36N2O5S.HCI.H₂O A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.)
- Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NAOH. What mass of glycine is required, and what volume of 1.00 NaOH is required? The appropriate pK, of glycine is 9.6.TE buffer consists of 10 mM of Tris-Cl, pH 7.6 and 1mM of EDTA, pH 8.0. You need to prepare 3L of TE buffer and you have the following stock solutions: 500 mM Tris-Cl and 1 M EDTA. How will you prepare the 3L of TE? Write work clearlyAn aqueous antifreeze solution is 45.0% ethylene glycol () by mass. The density of the solution is 1.05. Calculate the molality, molarity, and mole fraction of the ethylene glycol
- Titration of a 12.0 mL solution of HCl requires 22.4 mL of 0.12 M NaOH. What is the molarity of the HCl solution?200 microliters of a standard solution of 0.200 mg/mL caffeine was mixed with 4.8 mL of 50 mM sodium phosphate buffer, pH 3: methanol (60:40 v/v). What is the concentration of caffeine, in mg/mL, in this solution? Give your answer to two significant figures.Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH. What mass of glycine is required, and what volume of 1.00 NaOH is required? The appropriate pKa of glycine is 9.6