Answer:
- <em>The function of an indicator in a titration is to </em><u>indicate the equivalence point.</u>
Explanation:
<em>Titration</em> is a procedure that uses the properties of the acid - base reactions to determine the mole concentration of an unknown solution from the known mole concentraion of other solution. One of the solution is the base and the other is the acid.
At the equivalence point, where the number of H⁺ ions is equal to the number of OH⁻ ions, there is a drastic change of the acidity (or alkalinity) of the solution.
Then, the chemical <em>indicators</em> are substances that change color at the equivalence point, telling the chemist that the equivalence point has been reached and the titration has finished.
The conversion factor that would be used to calculate the number of moles of Cl2 produced if 11 moles of HCl were present in the reaction is as follows:
4 mol HCl; 2 mol Cl2
<h3>How to calculate number of moles stoichiometrically?</h3>
The number of moles of a reactant or product of a reaction can be calculated using stoichiometry.
According to this question, the following balanced chemical reaction was given:
4HCl + O2 --> 2Cl2 + 2H2O
This reaction shows that 4 moles of HCl is required to produce 2 moles of Cl2, therefore, this is the conversion factor that would be used to calculate the number of moles of Cl2 if 11 moles of HCl was present.
Learn more about stoichiometry at: brainly.com/question/9743981
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One technique we can use to measure the amount of heat involved in a chemical or physical process is known as calorimetry. Calorimetry is used to measure amounts of heat transferred to or from a substance. To do so, the heat is exchanged with a calibrated object (calorimeter).
Answer:
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Answer:
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Explanation: