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Potatoes can be peeled commercially by soaking them in a 3-M to 6-M solution of sodium hydroxide and removing the loosened skins by spraying them with water. Does a sodium hydroxide have a suitable concentration of titration of 12.0 ml of solution required 30.6 ml of 1.65 M HCl to reach the end point?

Respuesta :

Answer: Yes it has suitable concentration for titration of 12.0 ml of solution required 30.6 ml of 1.65 M HCl to reach the end point.

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

According to the neutralization law,

[tex]n_1M_1V_1=n_2M_2V_2[/tex]

where,

[tex]M_1[/tex] = molarity of [tex]HCl[/tex] solution = 1.65 M

[tex]V_1[/tex] = volume of [tex]HCl[/tex] solution = 30.6 ml

[tex]M_2[/tex] = molarity of [tex]NaOH[/tex] solution = ? M

[tex]V_2[/tex] = volume of [tex]NaOH[/tex] solution = 12.0 ml

[tex]n_1[/tex] = valency of [tex]HCl[/tex] = 1

[tex]n_2[/tex] = valency of [tex]NaOH[/tex] = 1

[tex]1\times 1.65\times 30.6=1\times M_2\times 12[/tex]

[tex]M_2=4.20M[/tex]

As the concentration of NaOH is 4.20 M and it lies between 3M to 6M ,thus it is suitable.

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