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4 years ago

13

You found a sample of a solution that has a faint odor resembling vinegar (an acid). To verify that it is vinegar, you add a few

drops of phenolphthalein. The sample turns pink.
From this result, can you assume this sample is indeed vinegar or contains some vinegar?

1 answer:

natali 33 [55]4 years ago

8 0

We can just conclude it’s an acid not vinegar or amounts of vinegar

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What reaction type is N2 + O2 ---> 2 NO

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Answer:

decomposition: the reactant is breaking down into its constituent elements.

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Explanation:

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3 years ago

How does the number of valence electrons determine the type and number of bonds an element forms?

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3 years ago

When a 17.7 mL sample of a 0.368 M aqueous hypochlorous acid solution is titrated with a 0.301 M aqueous barium hydroxide soluti

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Answer:

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Explanation:

Step 1: Data given

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Moles HCl = 0368 M * 0.0177 L

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Step 4: Calculate the limiting reactant

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HCl is the limiting reactant. It will completely be consumed 0.0065136 moles. Ba(OH)2 is in excess. There will react 0.0065136/2 = 0.0032568‬ moles. There will remain 0.0048762 moles - 0.0032568‬ = 0.0016194 moles

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Molarity Ba(OH)2 = moles / volume

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pOH = -log[OH-]

pOH = -log(0.09554)

pOH = 1.02

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pH = 14 - 1.02

pH = 12.98

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3 years ago

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