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Stolb23 [73]
3 years ago
15

Which of these can be classified as a pure substance?

Chemistry
2 answers:
Mariana [72]3 years ago
6 0
Salt. It's not mixed with anything.
vredina [299]3 years ago
4 0
Sssaaaallllttttt!!!!!!
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Suppose you used 0.5 M NaOH to titrate your vinegar sample instead of 0.1 M. What effect does the concentration of base added ha
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Answer: the reliability will be worse

Explanation:

Suppose we used 0.5 M NaOH to titrate our vinegar sample instead of 0.1 M.

Now by using 0.5M instead of 0.1M we are increasing the concentration of NaOH,

We know that  the moles used = Volume x concnetration.

so for the same no of moles, if the concentration increases, the volume decreases.

Hence it will consume less NaOH.

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2 years ago
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Explanation:

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