You have a sample of 87.1 mL of 2.2 M phosphoric acid solution in the lab. If you want to completely react (neutralise) the acid with a solution 1.6 M sodium hydroxide,
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You have a sample of 87.1 mL of 2.2 M phosphoric acid solution in the lab....
A 25.00 mL sample of a phosphoric acid solution is completely neutralized using 17.12 mL of 0.13 M sodium hydroxide. What is the initial concentration of phosphoric acid?
A student titrates 25.00 mL of a 0.1425 M solution of phosphoric acid with a 0.3150 M standard solution of potassium hydroxide. What volume (in mL) of potassium hydroxide is needed to completely neutralize the acid?
a student is preforming a titratio in lab. a sample of phosphoric acid with a volume of 12.05 mL requires 33.21 mL of 0.173 M potassium hydroxide to reach the equivalence point. H3PO4 + 3 KOH = K3PO4 +3 H2O A.) what is the concentration of the phosphoric acid?
1. A student is performing a titration in lab. A sample of phosphoric acid with a volume of 12.05 mL requires 33.21 mL of 0.173 M potassium hydroxide to reach the equivalence point. a. Write the balanced equation for this reaction, including phase labels. b. What is the concentration of the phosphoric acid?
molarity of acid: 0.1435M volume:25ml 1. Use the molar mass and moles of acetic acid to determine the mass of the acetic acid in the 25.00-ml sample. 2. Calculate the mass/volume percentage (m/v %) by dividing the mass of acetic acid in grams by the volume of the vinegar sample in mL and multiplying by 100. 3. For the reaction of sodium hydroxide solution with a solution of hydrochloric acid: a. Write a balanced molecular equation for the reaction, including...
22. The pH of 100 ml of 0.1 M phosphoric acid is 2.5, sketch the titration curve obtained by titrating the phosphoric acid solution with 0.2 M sodium hydroxide. Show clearly how you calculate the values used to plot the curve. (Use Ka values given in no. 15)
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)
A) A 21.5 mL sample of a 0.452 M aqueous nitrous acid solution is titrated with a 0.356 M aqueous sodium hydroxide solution. What is the pH at the start of the titration, before any sodium hydroxide has been added? pH = B) A 42.1 mL sample of a 0.399 M aqueous acetic acid solution is titrated with a 0.219 M aqueous sodium hydroxide solution. What is the pH after 51.8 mL of base have been added? pH = C)...