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What is stoichiometric end point?

Updated: 8/11/2023
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14y ago

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when stoichiometric amounts of the titrant and the analyte have completely reacted. this differs from an endpoint which is when a secondary indicator's color change takes place. :) hope that helps

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16y ago
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14y ago

The point at which the indicator changes color in a colorimetric titration.

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Q: What is stoichiometric end point?
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What is the stoichiometric point of a titration called?

end point


What is the equivalence or stoichiometric point?

At the stoichiometric point of a titration, the total amount (in moles) of OH- ions that have been added as a titrant is exactly equal to the amount of H3O+ ions initially present in the beaker.The measured pH of at the stoichiometric point of a strong acid-strong base titration is expected to be that of pure water i.e. pH = 7. In practice, attainment of the stoichiometric point will be marked by sudden sharp rise in pH from a value significantly below 7 to a value significantly above 7.


What is the pH at the stoichiometric point of the titration of 25.0 mL of aqueous hypochlorous acid with 0.20 M KOH aq?

The equivalence or stoichiometric point of a titration of a strong acid versus a strong base is always equal to pH 7.


Why does the temperature drop once the reaction reaches the stoichiometric point?

In can occur if the reaction in question in exothermic. After the stoichiometric point , there is no reactant left to react. No reaction occurs and no heat is evolved and as a result temperature drops.


What are non -stoichiometric compounds?

The defect which disturb the stoichiometric of the compound is called non-stoichiometric compounds.


What is the difference between equivalent point and end point in analytical chemistry?

The equivalence point is the point in a titration when the amount of added standard reagent is chemically equal to the amount of analyte. The end point is the point in a titration when a physical change occurring immediate after the equivalence point


What is true about the amounts of H and OH at the stoichiometric point in a titration of a strong acid with a strong base?

'Stoichiometric' means equal amounts according to the balanced reaction. So at that point you have only water where H+ and OH- conc.'s are equal (1.0*10-7)


Is iron oxide a non stoichiometric compound?

is fe3o4 non stoichiometric


What are non-stoichiometric defects?

Non stoichiometric compounds do not match to law of definite proportions.


What is equivalance point?

In an acid-base titration for the reaction HCl + NaOH -> H2O + NaCl the equivalence point is when the hydrochloric acid and sodium hydroxide neutralise each other in equimolar proportions. When one mole of HCl is added to one mole of NaOH then equivalence point is reached.The 'end point' in a titration is when the indicator changes to the neutral colour (e.g. green) and this is usually an approximation of where the equivalence point is.As a result, we can deduce concentrations of unknown substances if we know the stoichiometric numbers of in the chemical reaction (i.e. 1HCl) and have a substance of known concentration react the unknown with.


What does completely titrated mean?

Completely titrated means it reached the stoichiometric point (usually pH=7). Simply means neutralized.


What functions do ideal stoichiometric calculations serve?

Ideal Stoichiometric calculations give the theoretical yield of the products of the reaction