A technician finds the molar mass to be 134.8 g/mol and the pK, to be 4.65 after processing a data set for a solid acid unknown. Based on the previous information and the list of acid unknowns in the Laboratory Manual, what is the best call the student can make for the identity of the solid acid unknown? picolinic acid para-aminobenzoic acid. glutamic acid monohydrate D potassium hydrogen phosphate, monobasic O A. O B. OC. O D.

Use the References to access important values if needed for this question. An aqueous solution contains 0.180 M ascorbic acid (H₂C6H606) and 0.134 M perchloric acid. Calculate the ascorbate (C6H606²) ion concentration in this solution. [C6H₂O6²] = Retry Entire Group Submit Answer 8 more group attempts remaining mol/L.

what would the molarity acetic acid be?

How will the following situations affect the final calculation of the molarity of acetic acid? An air bubble was present in the tip of the buret when making the initial volume reading, but not when making the final volume reading.  A small amount of vinegar adhering to the side of the flask was left unreacted when the end point was thought to have been reached.  The endpoint of the vinegar titration was surpassed (excess NaOH was added) After rinsing any drops of vinegar adhering to the side of the flask, another 20 mL of deionized water was added to the vinegar in the flask After the standardization of the NaOH solution using solid H2C2O4 * 2H2O, the molar mass of anhydrous oxalic acid was used to calculate the molarity of the NaOH solution.

Incorrect Your answer is incorrect. • KC: Your answer is incorrect. • Cacl, Vour answer is incorrect. For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll ind K, data in the ALEKS Data tab. Does enlubility change with pH? hiyhest solubility compound pll 5 pll 6 pll 8 yes O no yes Ba(OH), O no O yes Caci, e no

50mL of Sodium hydroxide was titrated with 30mL of .1 mol/L of hydrochloric acid to reach the end. What's the mol/L of the sodium hydroxide.

Write the Henderson-Hasselbalch equation for a propanoic acid solution (CH₂CH₂CO₂H, pKa [HA] pH = = 4.352 || pH = 4.874 Answer Bank [A] + log Using the equation to calculate the quotient [A¯]/[HA] at three different pH values. [A-] [HA] [A-] [HA] - o = pka pH = 4.874).

14 12 10 8 + Equivalence point 6. 4 2 20.0 40.0 60.0 80.0 mL of 0.100 M NaOH added на

light data and DID NOT round any intermediate calculations. In a 3.8M aqueous solution of benzoic acid (C6H, CO₂H), what is the percentage of benzoic acid that is dissociated? You can find some data that is useful for solving this problem in the ALEKS Data resource. Round your answer to 2 significant digits. 7.0 % GEE ola

A buffer contains significant amounts of acetic acid and sodium acetate.   a)Write an equation showing how this buffer neutralizes added acid (HBr(aq) Express your answer as a chemical equation. Identify all of the phases in your answer.     b)Write an equation showing how this buffer neutralizes added base (KOH(aq) Express your answer as a chemical equation. Identify all of the phases in your answer.