Maps 1. What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H804)? 2...
What is the pH of the buffer resulting of the mixing of 34.4 g of sodium dihydrogen phosphate (NaH2PO4) and 48.5 g of sodium hydrogen phosphate (Na2HPO4) in 2.5 L of distilled water? 3. What is the pH of the buffer resulting of the mixing of 34.4 g of sodium dihydrogen phosphate (NaH2PO4) and 48.5 g of sodium hydrogen phosphate (Na2HPO4) in 2.5 L of distilled water?
2 points 9. Using your textbook and class notes as a reference, indicate if cresol red would be a good acid-base indicator for this titration. Justify your answer using your knowledge of titrations curves and indicators. if we use cresol red which has a ph range of 8-10.5 it can good indicator because our titration is Naoh and ASA i.e strong base and weak acid so equivalence point is around ph=9. Cresol red can indicate this equivalence point by changing...
What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H8O4) 1. What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H804)?
1. What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H804)?
4 points 3. What is the pH of the buffer resulting of the mixing of 34,4 g of sodium dihydrogen phosphate (NaH2PO4) and 48.5 g of sodium hydrogen phosphate (Na2HPO4) in 2.5 L of distilled water? Your answer
1. What is the pH of a 0.35 mol/l solution of acetylsalicylic acid (C9H8O4)? 2 points Your answer
1) Solution Components A 1 mL 100 mM NaH2PO4 + 9 mL 100 mM Na2HPO4 B 5 mL 100 mM NaH2PO4 + 5 mL 100 mM Na2HPO4 C 9 mL 100 mM NaH2PO4 + 1 mL 100 mM Na2HPO4 D 10 mL 100 mM NaH2PO4 stock solution E 10 mL 100 mM Na2HPO4 stock solution F 10 mL distilled water pKa of phosphate: 6.8 How would you calculate the pH of each equation using the Henderson Hasselbalch equations? 2) Tris...
A student was told to make a pH = 7.5 buffer from sodium dihydrogen phosphate and sodium hydrogen phosphate with an ionic strength of 0.10 a) What concentration of Na2HPO4 and NaH2PO4 need to be used? b) If 10.0 mL of 1.00 M Hbr is added to 1.00 L of this buffer, what is the pH? Please show work.
What is the pH of a 0.35 mol/L solution of facetylsalicylic acid 2
2. What is the pH of a 1.50 mol/L solution of ammonium chloride (NH4Cl)? Your answer