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harkovskaia [24]
2 years ago
15

Part 1

Chemistry
1 answer:
denis-greek [22]2 years ago
7 0

The moles of NaOH used in the titration would be 0.00177 moles while the molarity of the vinegar will be 0.885 M

<h3>Titration calculation</h3>

Recall that: mole = molarity x volume

In this case, the molarity of the NaOH= 0.1 M

Volume of NaOH = 17.7 - 0.0 = 17.7 mL

Mole of NaOH used = 0.1 x 17.7/1000 = 0.00177 moles.

Since NaOH and vinegar have 1:1 mole ratio, the mole of vinegar will also be 0.00177 moles.

Molarity of vinegar = mole/volume = 0.00177/0.002 = 0.885 M

More on titration calculations can be found here: brainly.com/question/9226000

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A.  This is not a redox reaction. It is an example of combustion.

<h3>Combustion reaction of hydrocarbon</h3>

During the combustion of a hydrocarbon, the hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat.

<h3>Example of combustion reaction</h3>

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Thus, we can conclude that, this is not a redox reaction. It is an example of combustion.

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Answer:

b) The dehydrated sample absorbed moisture after heating

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b) The dehydrated sample absorbed moisture after heating.

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c) The amount of the hydrate sample used was too small.

It will create some errors but they do not create a difference of 13% difference as stated in the problem.

d) The crucible was not heated to constant mass before use.

Here the error is small.

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