Essentials of General, Organic, and Bogrenstry Cne G To prepare an acetic acid/acetate buffer, a technician mixes 31.4 mL of 0.0843 M acetic acid and 20.7 mL of 0.124 M anteL The acetic acid/acetate buffer system is a common buffer used in the laboratory. sodium acetate in a 100 mL volumetric flask and then fills with water to the 100 mL mark. How many moles of acetic acid are present in this buffer? acetic acid: 2.722 mol Incorrect How many moles of sodium acetate are in the buffer? sodium acetate: mol Incorrect

Essentials of General, Organic, and Bogrenstry Cne G To prepare an acetic acid/acetate buffer, a technician mixes 31.4 mL of 0.0843 M acetic acid and 20.7 mL of 0.124 M anteL The acetic acid/acetate buffer system is a common buffer used in the laboratory. sodium acetate in a 100 mL volumetric flask and then fills with water to the 100 mL mark. How many moles of acetic acid are present in this buffer? acetic acid: 2.722 mol Incorrect How many moles of sodium acetate are in the buffer? sodium acetate: mol Incorrect

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter12: Water Requirements For Aquaculture

Section: Chapter Questions

Problem 27SA

See similar textbooks

Similar questions

please fill in both blanks
Penicillin G potassium 5000 units Isotonic Sodium Chloride Solution ad 15 mL Sig. Nose drop Using soluble penicillin tablets, each containing 100,000 units of crystalline penicillin G potassium, explain how you would obtain penicillin G potassium needed in compounding the prescription.
How many mLs should be removed from your dextrose 70% bag?
Complete Solution
3 mL of a 45 mM stock solution of a substrate is added to 8 mL of water. Calculate the following values. The substrate molecular weight is 125 g/mol. Calculate the following values: Substrate Volume in mL Dilution Factor Substrate number of moles Substrate concentration for the diluted solution in mM Substrate concentration for the diluted solution in mole/L Substrate concentration for the diluted solution in mg/mL
How much water must be added to 300 ml of a S M aqueeus selution of HCI in arder to obtain a feal conicentration of 2 M7 O A 750 mL OB. 450 mt OG 120 ml O D.400 mt. QUESTION 37 What are the imolecular formulas for sodium sulfate, methylene chłoride and sodium bicarbanate respectively? OA NazS04, CH3CI NAHCO, OB, Nazso3, CHCI3. Naco3 O. NazsO4, CCly, NaHCO3 O D. none of the answers OE. NapSo4, C2CH, Nazco3
. A prescriber ordered 240 mL of ¾ strength Sustacal PO B.I.D. Explain how you would use water as a diluent to mix this solution. Show your work with units and describe how much water and how much Sustacal you would use to create this mixture..
Tris NaCl buffer is known as?
Match the common laboratory scenarios to the correct buffer required using the guide below. Molecule pKa Value(s) Acetic acid 4.8 Carbonic acid 6.1, 10.2 Citric acid 3.1, 4.8, 5.4 HEPES 7.5 Phosphoric acid 2.1, 7.1, 12.3 TRIS 8.3 Mammalian cells require a pH of about 7.4 for cell and tissue culture experiments. Elution of remaining molecules from a cation exchange column requires washing with pH 10 buffer. Dissolution of lysozyme requires pH 3 buffer to maintain activity. Elution of remaining molecules from an anion exchange column requires washing with pH 2 buffer.…
Match the provided labels to the appropriate point on the titration curve. 14 4 120867NO Hd B Volume of strong base (ml) Buffering region Excess Litran Part 2 Use the titration curve for the weak acid to calculate the pH of a 0.150 Msolution of that weak acid. Round the pK to the nearest whole number for the calculation, and enter your answer for the pH to two significant figures.
Bradford method Reagents Stock Bradford reagent: Dissolve 100 mg Coomassie Brilliant Blue G250 in a mixture consisting of 100ml of 85% phosphoric acid, 50ml of 95% ethanol and 50ml 1M NAOH. Store at 4°C until precipitation occurs, at which point it is discarded. Working Bradford reagent: Prepare fresh by diluting 10ml of stock Bradford reagent to 250ml with distilled water. Stock bovine serum albumin (BSA) solution (10mg/ml): Dissolve 0.2g BSA in 20ml distilled water. Working BSA concentration range: 0.5 – 1.25 mg/ml Method 1. Prepare the folloving test tubes: Table 1: Preparation of test tubes for the Bradford method Blank Tube 1 Tube 2 Tube 3 Tube 4 Tube 5 Unknown Distilled H20 1.0 ml 0.9ml 0.9ml 0.9ml 0.9ml 0.9ml 0.9ml 0.25 mg/ml BSA 0.1 ml 0.5 mg/ml BSA 0.1 ml 0.75 mg/ml BSA 0.1 ml 1.0 mg/ml BSA 0.1 ml 1.25 mg/ml BSA 0. 1ml Unknown 0.1ml protein Working 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml Bradford 2. After each addition of the working Bradford reagent, thoroughly mix the…
How do you prepare 500 mL pH 6 Citric acid/Phosphate buffer in the laboratory. Please explain briefly.