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natta225 [31]
2 years ago
10

what are the limitations of litmus paper and phenolphthalein indicatiors? Name two other indicators that can be used that do not

have such limitations
Chemistry
1 answer:
skelet666 [1.2K]2 years ago
7 0

Answer:

Limitations of litmus paper and phenolphthalein:

They do not give the numerical pH value.

Can differentiate only between a very strong acid and base.

The colour change can be for reasons other than acid- base reactions.

Explanation:

The litmus test is quick and simple, but it suffers from a few limitations. First, it's not an accurate indicator of pH; it does not yield a numerical pH value. Instead, it roughly indicates whether a sample is an acid or a base. Second, the paper can change colors for other reasons besides an acid-base reaction.

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Answer:

Answer is: mass of copper is 127 grams.

Balanced chemical reaction: Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂(aq) + 2Ag(s).

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m(Cu) = n(Cu) · M(Cu).

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m(Cu) = 127 g

Explanation:

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