How do you calculate moles of HCl in a titration?
When the base neutralizes the acid, the number of moles of H+ = the number of moles of OH-. Therefore, the number of moles of H+ = 0.0125 moles. Every mole of HCl will produce one mole of H+; therefore, the number of moles of HCl = number of moles of H+. The concentration of the HCl is 0.25 M.
What is the equivalence point of HCl and NaOH titration?
During the course of the titration, the titrant (NaOH) is added slowly to the unknown solution. As it is added, the HCl is slowly reacted away. The point at which exactly enough titrant (NaOH) has been added to react with all of the analyte (HCl) is called the equivalence point.
How do you calculate moles of NaOH?
Calculate the moles of NaOH delivered by using the volume of NaOH and the molarity of NaOH. (The volume needs to be in liters and the concentration of the NaOH is 1 M.) The moles of acetic acid in sample is equal to the moles of NaOH delivered because the acid has one H+ and the base has one OH-.
Which indicator is used for titration of NaOH and HCl?
phenolphthalein
For a weak acid vs strong alkali titration, phenolphthalein is the most suitable indicator. This is so because the last drop of added alkali brings the pH of the solution in the range in which phenolphthalein shows sharp colour change.
What is the reaction between HCl and NaOH?
The reaction of an aqueous hydrochloric acid solution with an aqueous sodium hydroxide solution is represented by the neutralization chemical equation. HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l) + heat.
What is the heat of reaction between HCl and NaOH?
The heat of reaction of one mole of H+ and OH- is 57.3 KJ. So, the heat of neutralisation of HCl and NaOH will be very cery close to 57.3 KJ per mole( As Both HCl and NaOH are strong elctrolytes so both of them quite easily without any considerable expense of energy furnish H+ and OH- ions respectively.
What happens when HCL and NaOH mix?
When HCl (Hydrochloric acid) and NaOH (Sodium Hydroxide are mixed they form Common salt (NaCl) and Water (H2O). This is an neturalization reaction as the acid and base react together to form a salt and water.
What is the heat of neutralization of HCl?
Calculate the number of moles of base you add to determine the molar heat of neutralization, expressed using the equation ΔH = Q ÷ n, where “n” is the number of moles. For example, suppose you add 25 mL of 1.0 M NaOH to your HCl to produce a heat of neutralization of 447.78 Joules.