2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a...
what is the molarity of a solution of a phosphoric acid that is made by dissolving 8.00 g of H3PO4 on 0.1 L of water. A.) 0.0816M B.) 0.816 M C.) 0.1 M D.) 1.6 M Write the correct molecular equation, complete ionic equation, and net ionic equation, for the reaction that occurs between cobalt(II)chloride and sodium hydroxide
Write a balanced net ionic equation for the reaction between barium hydroxide and phosphoric acid (H3PO4) n water.
2.poets.] Phosphoric acid (75.0 m1L of 0.250 M) is added n hydroxide solution. mt oro.250 M) is added to 425.00 mL or o.osso M barium a. Write a balanced chemical b. Identify the spectator ions. equation for the above reaction rnte a net-ionic equation for the above reaction. Calulate the concentration of the excess H or OH ions left in this solution.
0.85 mL of 2.4 M NaOH was added to neutralize 45.0 mL of a H3PO4 solution. a) write the balanced molecular equation b) calculate the concentration of the phosphoric acid solution 6. 0.85 mL of 2.4 M NaOH was added to neutralize 45.0 mL of a H3PO4 solution. (10 points) a) Write the balanced molecular equation. b) Calculate the concentration of the phosphoric acid solution.
A 10.00 mL sample of phosphoric acid is titrated with 20.15 mL of a 2.50 mol/L sodium hydroxide solution. H3PO4 (aq) + NaOH ----> H2O (l) + Na3PO4 (aq) a) Balance the molecular equation and write the net ionic equation. b) calculate the molarity of phosphoric acid. c) calculate the mass percent of phosphoric acid in the water mixture (density = 1.50 g/mL)
A 10.00 mL sample of phosphoric acid is titrated with 20.15 mL of a 2.50 mol/L sodium hydroxide solution. H3PO4 (aq) + NaOH ----> H2O (l) + Na3PO4 (aq) a) Balance the molecular equation and write the net ionic equation. b) calculate the molarity of phosphoric acid. c) calculate the mass percent of phosphoric acid in the water mixture (density = 1.50 g/mL)
A 10.00 mL sample of phosphoric acid is titrated with 20.15 mL of a 2.50 mol/L sodium hydroxide solution. H3PO4 (aq) + NaOH --> H2O (1) + Na3PO4 (aq) a) Balance the molecular equation and write the net ionic equation. b) calculate the molarity of phosphoric acid. c) calculate the mass percent of phosphoric acid in the water mixture (density = 1.50 g/mL)
5) Phosphoric acid (H3PO4) is added to deionized water at a total concentration of 0.01 M and then sodium hydroxide is added until the pH is increased to 5.0. a) What is the value of the first ionization fraction (a for H2PO4)? b) What molar concentration of H2PO4' would you expect at this pH?
What is the initial pH expected for a 0.1 M solution of phosphoric acid (H3PO4)? For 30.0 mL of 0.1 M H3PO4 (aq), what volume of 0.1 M NaOH (aq) is required to fully titrate all three protons to their end points? In the titration of a weak acid with a strong base, how is the half equivalence point determined and what is its significance? How are the pKa and Ka of the weak acid determined from the half equivalence...
1. Phosphoric acid, H3PO4 is a triprotic acid with pKsı = 2.14 and pKa = 7.20 and pkas 12.38. Draw the titration curve predicted for 0.1 M phosphoric acid titrated by 0.1 M NaOH. (Assume the volume of acid is 20. mL) 2. The pKb of the acetate ion is 9.25. a. Using this information, calculate the pKa of acetic acid. b. Using the Henderson-Hasselbalch equation, calculate the ratio of the concentration of acetate to acetic acid required to produce...