total volume 2. Calculate the pH of 0.0800 M leucine hydrochloride, 0.0500 M sodium leucinate, and...
Calculate the pH of 0.586 M anilinium hydrochloride (C6H5NH3CI) solution in water at 25°C, given that Ky for aniline is 3.83 x 10-4.
Calculate the pH of a 1.41×10-2 M solution of the decongestant ephedrine hydrochloride if the pKb of ephedrine (its conjugate base) is 3.86.
1. Calculate the pH of a 0.0162 M triethylamine hydrochloride solution. Kb ((C2H5)3N) = 5.6 × 10−4. show work. 2. In a flask, you have 35.00 mL of 0.140 M acetic acid, a weak monoprotic acid with Ka = 1.8 × 10−5. Calculate the pH after the addition of 9.10 mL of 0.140 M NaOH. show work.
4. (16 Points) A) Calculate the pH of 0.250 Lof a 0.36 M Formic acid HCO2H and 0-30 M Sodium formate, NaCO, buffer. Assume that volume remains constant (K, for HCOH = 1.8 x 10^). B) Calculate the ph of the above buffer after the addition of a) 0.0050 mol of NaOH and b)0.0050 mol of HCI 5. (12 Points) a)Calculate the pH of 100.0 mL 0.20 M NH (K = 1.8 X 105). b)Calculate the pH of a solution...
71% Calculate the pH and concentration of all species in a 027M Na2 SOs (sodium sulfite) solution? The ionization constants for sulfurous acidare Kal 1.4 x 10-2 and K2 6.3 x 10-8 Give your answers to 2 significant figures OH 1 POH PH- İHS S05 - Estimate the pH and the concentrations of all species in a 0.350 M phasphoric acid solution Answer thisquestion by matching each of the questions (on the left) with the correct value (on the right)...
4. Calculate the volume of 1 M sodium hydroxide (NaOH) needed to prepare 10 ml of a 0.10 M sodium hydroxide solution. 5. Calculate the volume of 1 M hydrochloric acid (HCI) needed to prepare 10 mL of a 0.10 M hydrochloric acid solution. 6. Determine the volumes of 0.10 M CH3COOH and 0.10 M CH3COONa required to prepare 10 ml of the following pH buffers. (Note: the pka of CH3COOH =4.7) C. pH 3.7 b. pH 47 C. pH...
(10) (3) 4. The metal ion Mnt was titrated with 0.0500 M EDTA. The initial solution contained 100.0 mL of 0.0500 M metal ion (M9+) buffered at a pH of 9.00. a) Calculate the equivalence volume (Veg). b) What is the concentration of the free metal ion at volume V = Veg/2. c) If the conditional formation constant, K'r = 5.4 X 1010, calculate the concentration of free metal ion at volume V = Veq. (4)
Given 500ml eof .100 M sodium formate, calculate the volume of 1.00 M HCL needed to adjust the final PH of the mixture to pH 4.75
Calculate how to prepare 750 ml of 0.25 M sodium formate buffer at pH 4. Use your textbook to determine the molecular weight and pKa of the acid and base. Calculate the grams of sodium formate and number of milliliters of formic acid required. THEN using this stock solution, calculate and describe how you would prepare 100 ml of a 10 mM formate buffer, pH 3.5. By the way, what is the molarity of formic acid? with pH 7.6 and...
stion 3 of 4 Calculate the pH of the solution after the addition of cach of the given amounts of 0.0683 M HNO to a 80.0 mL solution of 0.0750 M aziridine. The pKa of aziridinium is 8.04. What is the pH of the solution after the addition of 0.00 mL. HNO,? pH What is the pH of the solution after the addition of pH 5.90 mL. HNO,? What is the pH of the solution after the addition of a...