A 15 ml aliquot of 1.00 M phosphoric acid is titrated with sodium hydroxide using phenolphthalein...
A 15 ml aliquot of 1.00 M phosphoric acid is titrated with sodium hydroxide using phenolphthalein as an indicator. If it takes 20.00 ml of sodium hydroxide to reach the endpoint, what is the molarity of the sodium hydroxide? Answer with appropriate significant digits.
H3PO4 (aq) + NaOH (aq) --> H2O (l) + Na3PO4
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A 15 ml aliquot of 1.00 M phosphoric acid is titrated with
sodium hydroxide using phenolphthalein...
A 10.00 mL sample of phosphoric acid is titrated with 20.15 mL of a 2.50 mol/L...
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...
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...
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)
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH...
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH, according to HCl(aq) + NaOH(aq) - NaCl(aq) + H2O(1) what is the concentration of the sodium hydroxide solution? (Enter your
50.00 mL of unknown calcium hydroxide solution is titrated with 0.300 M standard nitric acid solution....
50.00 mL of unknown calcium hydroxide solution is titrated with 0.300 M standard nitric acid solution. If 42.21 mL of the standard acid so lution is required to reach a phenolphthalein endpoint, what is the molarity of the unknown calcium hydroxide solution? (Hint: write the balanced formula unit equation.)
Question 2 (10 points) If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253...
Question 2 (10 points) If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 MH2SO4, the flask at the endpoint will contain (besides the indicator phenolphthalein) as the principal components: sodium hydroxide, sulfuric acid, and water dissolved sodium sulfate and water sodium hydroxide, sodium sulfate, and water dissolved sodium sulfate, sulfuric acid, and water precipitated sodium sulfate and water Question 3 (10 points) A 75.0-ml sample of 0.0650 MHCN (K-62 10-10) is titrated with 0.65 M NaOH. What...
If 47.60 mL of 0.480 M lithium hydroxide is required to neutralize 53.6 mL of phosphoric...
If 47.60 mL of 0.480 M lithium hydroxide is required to neutralize 53.6 mL of phosphoric acid, what is the molarity of the acid? H3PO4(aq)+3LiOH(aq)→Li3PO4(aq)+3H2O(l)
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is titrated with 0.400 M KOH...
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is
titrated with 0.400 M KOH as shown below. phosphoric acid has three
pKas: 2.148, 7.198, 12.375.
H3PO4(aq) + OH-(aq)
H2PO4-(aq) +
H2O(l)
H2PO4-(aq) + OH-(aq)
HPO42-(aq) +
H2O(l)
HPO42-(aq) + OH-(aq)
PO43-(aq) + H2O(l)
Calculate the pH of phosphoric acid solution before any KOH has
been added.
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
A 50.00 mL aliquot of 0.1548 M benzoic acid is titrated with 0.1325 M sodium hydroxide....
A 50.00 mL aliquot of 0.1548 M benzoic acid is titrated with 0.1325 M sodium hydroxide. Find (a) V. (b) the initial pH, (c and d) the pH after 10.00 and 30.00 mL are added, (e) the pH at Vand (1) the pH at V. + 10.00 mL. Sketch the titration curve. You may use all usual "assumptions" for the pH calculations. Benzoic acid is a weak acid. Write the numeric answers here: Sketch the titration curve here: a. mL...
Calculate the concentration of a barium hydroxide solution if it takes 35.42 mL of a 0.1042...
Calculate the concentration of a barium hydroxide solution if it takes 35.42 mL of a 0.1042 M solution of phosphoric acid to reach the endpoint of titration for a 25.00 mL sample of the barium hydroxide solution 3 Ba(OH)2 (aq) + 2 H3PO4 (aq) 6H20 (1) + Baz(PO4)2 (aq) Express your answer in molarity. Do not include the units.
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)
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH, according to HCl(aq) + NaOH(aq) - NaCl(aq) + H2O(1) what is the concentration of the sodium hydroxide solution? (Enter your
Question 2 (10 points) If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 MH2SO4, the flask at the endpoint will contain (besides the indicator phenolphthalein) as the principal components: sodium hydroxide, sulfuric acid, and water dissolved sodium sulfate and water sodium hydroxide, sodium sulfate, and water dissolved sodium sulfate, sulfuric acid, and water precipitated sodium sulfate and water Question 3 (10 points) A 75.0-ml sample of 0.0650 MHCN (K-62 10-10) is titrated with 0.65 M NaOH. What...
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is
titrated with 0.400 M KOH as shown below. phosphoric acid has three
pKas: 2.148, 7.198, 12.375.
H3PO4(aq) + OH-(aq)
H2PO4-(aq) +
H2O(l)
H2PO4-(aq) + OH-(aq)
HPO42-(aq) +
H2O(l)
HPO42-(aq) + OH-(aq)
PO43-(aq) + H2O(l)
Calculate the pH of phosphoric acid solution before any KOH has
been added.
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
A 50.00 mL aliquot of 0.1548 M benzoic acid is titrated with 0.1325 M sodium hydroxide. Find (a) V. (b) the initial pH, (c and d) the pH after 10.00 and 30.00 mL are added, (e) the pH at Vand (1) the pH at V. + 10.00 mL. Sketch the titration curve. You may use all usual "assumptions" for the pH calculations. Benzoic acid is a weak acid. Write the numeric answers here: Sketch the titration curve here: a. mL...
Calculate the concentration of a barium hydroxide solution if it takes 35.42 mL of a 0.1042 M solution of phosphoric acid to reach the endpoint of titration for a 25.00 mL sample of the barium hydroxide solution 3 Ba(OH)2 (aq) + 2 H3PO4 (aq) 6H20 (1) + Baz(PO4)2 (aq) Express your answer in molarity. Do not include the units.
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