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3 years ago

A titration graph shows little resistance to a change in pH at the start and has a single equivalence point of 8.6.

Chemistry

1 answer:

konstantin123 [22]3 years ago

3 0

Answer: A weak acid titrated by a strong base

Explanation:

The graph refers to the titration of a weak acid such as Hydrofluoric acid with a strong base such as Sodium Hydoxide. What happens is that as the process begins, the pH rises quickly as there is little resistance to the base.

After some time the solution formed begins to act as a buffer between the remaining acid and the base. This reduces the pH change rate and will continue until the base overcomes the solution's buffering capacity.

The Equivalence point which is where the acid will be at it's base form, will be at a pH of 8.6.

I have attached a graph showing the process for better understanding.

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Evgesh-ka [11]

Answer:

D) 1 iron(II), 2 chloride

Explanation:

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Fe^2+(aq) + 2Cl^-(aq) -----> FeCl2

The formation of one mole of FeCl2 involves the reaction one mole of iron and two moles of chloride ions. This means that in FeCl2, the ratio of iron to chlorine is 1:2 as seen above.

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hodyreva [135]

Answer:

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Explanation:

This is a problem of rules of three:

1 mol of C₃H₈ contains 3 moles of C and 8 moles of H

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4.10 moles of H are contained in (4.1 . 1) /8 = 0.5125 moles

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Let's convert the moles to mass:

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erica [24]

Answer:

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Explanation:

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