Oxalic acid, HO₂CCO2H, is a diprotic acid with Ka1=5.62× 10-2 and Ka2=5.42 x 10-5 Calculate Kb for HO,CCO For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph ✔ Arial V 10pt Ev EV A2 V ...
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- The pH of a saturated soloution of magnesium hydroxide, Mg(OH)2, (milk of magnesia) was found to be (1.080x10^1). From this, find the Ksp for magnesium hydroxide. Express your answer to three significant figures. Note: Your answer is assumed to be reduced to the highest power possible.Sketch a plot of the fraction of species, f, vs pH for Tyr. Show your calculations for several points on the plot. You want to calculate the fraction of the species for more than 3 of the points. pKa’s for Tyr is 2.24, 9.04, and 10.10.I was just wondering how you got the 4.0 x 10-4 for the acidionzation constant.
- A 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali and thefollowing volumes of acid were recorded: 9.88 10.18 10.23 10.39 10.21 Calculate the 95% confidence limits of the mean and use them to decide whetherthere is any evidence of systematic error.why is it necessary to test the ph? EXTRME DETAIL PLEASE PROCEDURE To a six inch test tube was added thiamine hydrochloride (0.65 g), followed by water (2mL). The mixture was gently shaken until homogeneous, and then ethanol (7.5 mL)was added. Finally, sodium hydroxide (10%, 1.5 mL) was added and the mixture wasgently stirred to ensure complete mixing.Benzaldehyde (3.8 mL) was then added at room temperature in one portion with gentlestirring. The pH of the resulting reaction mixture was determined and adjusted to >10by dropwise addition of 10% sodium hydroxide.Ka for ethanoic acid is 1.7*10^-5 moldm-3. Show by calculation that the initial pH in experiment B is 4.8.
- MATLAB The acidity of solutions is generally measured in terms of pH. The pH of a solution is defined as theconcentration of hydronium ions. Create a table of conversions from concentration of hydronium ionto pH, spaced logarithmically from 0.001 to 0.1 mol/liter with 10 values. Assuming that you havenamed the concentration of hydronium ions H_conc, the syntax for calculating the negative of thelogarithm of the concentration (and thus the pH) is:pH = -log10 (H_conc)Using the following data: A (Chloroacetic acid) ClCH2COOH system, pKa = 2.472, Ca = 0.025M. Construct the plot of the master variable (Log C versus pH).The pH of a saturated soloution of calcium hydroxide, Ca(OH)2, (lime water) was found to be (1.241x10^1). From this, find the Ksp for calcium hydroxide. Express your answer to three significant figures. Note: Your answer is assumed to be reduced to the highest power possible.
- please give calculation as well. Calculate the pH value of each of the solutions in tubes 1-9 using the Henderson-Hasselbalch equation (H-H eqn).Determine the pl of casein. Compare your experimental values with those found in the literature. Biomolecules. Thank you! The protein is casein.Trial 1: Initial pH= 3.92mL Mass of KHP and Paper= 0.868g Mass of paper= 0.357g Mass of KHP= 0.511g Trial 2: Initial pH= 4.09ml Mass of KHP and Paper= 0.870g Mass of paper= 0.359g Mass of KHP= 0.511g 1)Use Kb, the number of moles of C8H4O4^2- at the equivalence point, and the total volume at that point to calculate the pH for each sample at the equivalence point. Compare these calculated results with the experimental results.1) For an open system with PCO2=10−3.5 atm what fraction of the total carbonate is in the form of CO32− at pH 10.63? 2) Using paleolimnological methods it is possible to estimate past pH values of surface waters. If the estimate of pH is 5.787 , what is the corresponding PCO2? in atm.