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2 years ago

Describe two techniques used to measure the PH of a solution

Chemistry

2 answers:

natali 33 [55]2 years ago

8 0

Answer:

ph paper, or a ph meter

Explanation:

lord [1]2 years ago

3 0

Answer:

Measure H+ concentration or measure OH- concentration

Explanation:

Since pH is basically the number of H+ ions in a solution, that's what you're trying to find. (it's actually -log of H+, which is irrelevant since this is a conceptual question). You can do this with a variety of chemicals.

And p,OH is always 14-pH. So you can also use the number of OH- ions to find p,OH, which can find pH.

hope this helps

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Which of the following is the correct Lewis structure diagram for Neon? The letters Ne with eight dots The letters Ne with seven

Sedaia [141]

Answer:

Ne with eight dots

Explanation:

On the periodic table, Neon is in group 8A. The group can be used to determine the number of valence electrons.

The dots in the Lewis structure diagram represent the number of valence electrons.

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2 years ago

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For which type if reaction must you use an activity series to predict the results

Paha777 [63]

Single replacement or single displacement reactions

Explanation:

In a single replacement or displacement reaction, the activity series is useful in predicting whether the reaction will take place or not.

In this reaction type, one substance is replacing another.

C + DE → CD + E

The relative positions of the two elements in the activity series provides the driving force for the single replacement reaction.
An element high up in the series will displace one that is lower in the series because it is more reactive.

Learn more:

Chemical reactions brainly.com/question/3953793

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2 years ago

A solution is prepared by dissolving a

goldfiish [28.3K]

Answer:

119g

Explanation:

Just multiply

2.38% of 500 =

119 g

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2 years ago

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Copper oxide is a: (Multiple Choice)

Triss [41]

Answer:

The answer is 5. Compound

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3 years ago

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Tia has a sample of pure gold (Au). She weighed the sample and the result was 62.4 grams. Tia wants to determine the number of a

Marta_Voda [28]

I hope you are able to find your answer through the guidance of this site as I have yet to cover this topic in chemistry: http://scientifictutor.org/1021/chem-how-to-convert-between-grams-and-molecules/

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2 years ago