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- If the borax sample was accidentally mixed with water contaminated with sodium chloride, how would the calculated Ksp be affected? Would it be higher, lower, or stay the same? Why?This is a Biochemistry lab question. For the lab we are spectrophotometrically determining the pka of PNP based on different pHs. I have a sigmoid graph of the absborances of PNP at different pHs at 400 nm. I have pH on the x-axis and absorbance on the y-axis. How do a calculate the pka based off of this graph?1. Suggest a reasonable combination of ionization source, mass analyzer, and detector for the following applications: a. The determination of calcium in milk. b. The identification of a virus with a mass of 30 kDa. c. The molar mass and structural identification of a newly developed steroid.
- Explain why is FAAS a good method of quantifying Ca in milk?CATION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS Excess NH3 NVR KSCN NVR K4Fe(CN)6 NVR K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) Litmus paper: red to blue ANION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS HNO3, Fe(NO3)3 Blood red aqueous layer; colorless toluene layer HNO3, KMnO4 Peach aqueous layer; colorless toluene layer (to the ppt) CH3COOH White ppt does not dissolve MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 NVR Select one or more: NH4+ CO32- Fe3+ SO42- Cu2+ NO3- Ca2+ I- Br- PO43- Zn2+ SCN-The pNa of a mixture prepared by mixing 100 ml of 0 00053 M of NaCl and 300 ml of 0 00060 M in Na PO, is a 314 b 125 c 234 d 2 10 e 484 الأنتنامى كلية العلوم
- Help blic Health Ch x 100% 47 HSC 258 - Major Projec X MindTap - Cengage Lea x C The Illustration To- 55750828934189288909969212&elSBN=9781305657571&id%3D1061392007&nbld%321... Q Search References Use the References to access important values if needed for this question. For the following reaction, 65.6 grams of barium hydroxide are allowed to react with 40.9 grams of sulfuric acid. barium hydroxide (aq) + sulfuric acid (aq) >barium sulfate (s) + water (1) What is the maximum amount of barium sulfate that can be formed? grams What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit AnswerWhat are analytes and how can they be used for biochemical recognition?Which matches the data?
- QUESTION 1 You obtained the following raw data when setting up a Bkuret standard curve BSA (mg/ml) Absorbancy 540nm 0.158 0210 0.260 3 0 305 4. 0360 0.410 6 0 455 0.510 0 530 0.550 10 0 554 After blanking against a biuret-dH20 sample, the protein concentration of an unknown sample was determined using the same method and an absorbancy of 0.324 was obtained Set up a standard curve, excluding outliers (experimental and statistical) and determine the protein concentration in the unknown sample in mg / mil (up to 3 significant figures).creat a separation flowchart of Al3+, Sb3+ and Zn2+ without using sulfate or thioacetamineHow are analytes usually recovered after SFC or SFE?