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How do you calculate the number of moles of sulfuric acid used in the titration process?
To calculate the number of moles of sulfuric acid used in a titration, you can use the formula: moles concentration x volume. First, determine the concentration of the sulfuric acid solution in moles per liter. Then, measure the volume of the sulfuric acid solution used in the titration in liters. Multiply the concentration by the volume to find the number of moles of sulfuric acid used in the titration.
How do you find concentration of an acid from a titration?
To find the concentration of an acid from a titration, you would use the stoichiometry of the reaction to determine the moles of acid that reacted with the known concentration of base. Then, you would use this information to calculate the concentration of the acid by dividing the moles of acid by the volume of the acid used in the titration.
Why bromocresol indicator used for sodium carbonate and HCl titration?
Bromocresol green is used as an indicator in the titration of sodium carbonate with hydrochloric acid because it changes color within the pH range of the endpoint of the titration. It turns yellow in acidic solutions (due to excess HCl) and blue in basic solutions (due to excess Na2CO3), making it suitable for detecting the equivalence point where the moles of acid have reacted completely with the moles of base.
How many moles of excess sulfuric acid are left over after the reaction is complete 2 nh3 aq plus h2so4 aq nh4 2so4 aq?
To determine the moles of excess sulfuric acid left over after the reaction is complete, you need to compare the stoichiometry of the reactants. In this case, 2 moles of NH3 reacts with 1 mole of H2SO4. If you know the initial moles of NH3 and H2SO4 used in the reaction, you can calculate which one is in excess and how many moles of the excess reactant are left over.
What happens at the molecular level when the equivalence point is reached during the titration of the sulfuric acid H2S04 and potassium hydroxide KOH?
At the equivalence point of the titration between sulfuric acid (H2SO4) and potassium hydroxide (KOH), all the moles of H+ ions from the acid react with an equal number of moles of OH- ions from the base to form water (H2O). The resulting solution will be neutral as all the acid has been neutralized by the base, and no excess ions remain in solution.
How do you calculate the number of moles of sulfuric acid used in the titration process?
To calculate the number of moles of sulfuric acid used in a titration, you can use the formula: moles concentration x volume. First, determine the concentration of the sulfuric acid solution in moles per liter. Then, measure the volume of the sulfuric acid solution used in the titration in liters. Multiply the concentration by the volume to find the number of moles of sulfuric acid used in the titration.
How do you find concentration of an acid from a titration?
To find the concentration of an acid from a titration, you would use the stoichiometry of the reaction to determine the moles of acid that reacted with the known concentration of base. Then, you would use this information to calculate the concentration of the acid by dividing the moles of acid by the volume of the acid used in the titration.
Why bromocresol indicator used for sodium carbonate and HCl titration?
Bromocresol green is used as an indicator in the titration of sodium carbonate with hydrochloric acid because it changes color within the pH range of the endpoint of the titration. It turns yellow in acidic solutions (due to excess HCl) and blue in basic solutions (due to excess Na2CO3), making it suitable for detecting the equivalence point where the moles of acid have reacted completely with the moles of base.
How can you calculate the concentration of a phosphoric acid solution from the titration with sodium hydroxide?
You can calculate the concentration of a phosphoric acid solution by determining the volume of sodium hydroxide needed to neutralize it in a titration. The molarity of the sodium hydroxide solution and the balanced chemical equation for the reaction will allow you to find the moles of phosphoric acid present, hence the concentration.
How many moles of excess sulfuric acid are left over after the reaction is complete 2 nh3 aq plus h2so4 aq nh4 2so4 aq?
To determine the moles of excess sulfuric acid left over after the reaction is complete, you need to compare the stoichiometry of the reactants. In this case, 2 moles of NH3 reacts with 1 mole of H2SO4. If you know the initial moles of NH3 and H2SO4 used in the reaction, you can calculate which one is in excess and how many moles of the excess reactant are left over.
What happens at the molecular level when the equivalence point is reached during the titration of the sulfuric acid H2S04 and potassium hydroxide KOH?
At the equivalence point of the titration between sulfuric acid (H2SO4) and potassium hydroxide (KOH), all the moles of H+ ions from the acid react with an equal number of moles of OH- ions from the base to form water (H2O). The resulting solution will be neutral as all the acid has been neutralized by the base, and no excess ions remain in solution.
What is the color of the indicator when an excess of hydrochloric acid has been added?
The indicator turns pink when an excess of hydrochloric acid has been added in a titration.
What is the approximate pH of the equivalence point in the titration pH curve?
The approximate pH of the equivalence point in a titration pH curve is around 7 for a strong acid-strong base titration. This is because at the equivalence point, the moles of acid are equal to the moles of base, resulting in a neutral solution.
Does it take more NaOH in back titration with phenolphthalein?
Yes, it takes more NaOH in a back titration with phenolphthalein compared to a direct titration because the indicator reacts with the excess acid in the sample before the endpoint is reached. This means more base is required to neutralize the excess acid present.
The equivalence point reached when the pH reaches it maximum value?
The equivalence point is reached in a titration when the moles of acid are equal to the moles of base added. At the equivalence point, the pH of the solution is at its maximum or minimum value, depending on whether a strong acid or base is used in the titration.
How many moles of HClO4 are needed to react in excess P4O10 to produce 324.5 moles of Cl2O7?
The answer is 699 moles perchloric acid.
How can one calculate the pKa from a titration curve?
To calculate the pKa from a titration curve, identify the point on the curve where the concentration of the acid and its conjugate base are equal. This is the half-equivalence point. The pH at this point is equal to the pKa of the acid.
