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MissTica
3 years ago
5

Regarding acids, bases, and pH, which of these statements is true? Choose one: A. Substances that release protons when they diss

olve in water are termed acids and result in a pH lower than 7. B. Substances that release protons when they dissolve in water are termed bases and result in a pH lower than 7. C. Substances that release protons when they dissolve in water are termed bases and result in a pH higher than 7. D. Substances that release protons when they dissolve in water are termed acids and result in a pH higher than 7.
Chemistry
2 answers:
Mamont248 [21]3 years ago
8 0

Answer: A

Explanation:

An acid is a substance that dissolves in water to produce proton (H +), which then combines with Water molecule (H2O) to give Hydroxonium ion (H3O +).

Acid also have a pH value below 7 on the pH scale.

GrogVix [38]3 years ago
3 0

Answer:

A. Substances that release protons when they dissolve in water are termed acids and result in a pH lower than 7

Explanation:

An acid when in water releases a proton(H+) while the base in water releases an hydroxide(OH- )ion. The hydroxide ion released by the base then accepts the Proton released by the acid.

An acidic substance is known to have a pH of 0-6.9 while basic substances have a pH of 7.1-14.0.

This makes option A correct.

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The titration of 25.00 ml a 0.125 m hclo4 solution requires 27.07 ml of koh to reach the endpoint. what is the concentration of
agasfer [191]

Answer : The concentration of the KOH is, 0.115 M

Explanation :

Using dilution law,

n_1M_1V_1=n_2M_2V_2

where,

n_1 = basicity of an acid = 1

n_2 = acidity of a base = 1

M_1 = concentration of HClO_4 = 0.125 M

M_2 = concentration of KOH = ?

V_1 = volume of HClO_4 = 25 ml

V_2 = volume of NaOH = 27.07 ml

Now put all the given values in the above law, we get the concentration of the KOH.

1\times 0.125M\times 25ml=1\times M_2\times 27.07ml

M_2=0.115M

Therefore, the concentration of the KOH is, 0.115 M

5 0
3 years ago
How many moles of solid naf would have to be added to 1.0 l of 2.39 m hf?
sp2606 [1]
Molarity is one way of expressing concentration and is equal to the number of moles of the solute per liter of the solution. Therefore,

Molarity = 2.39 mol / L solution

2.39 ( 1.0) = 2.39 mol HF

Hope this answers the question.
6 0
3 years ago
Help me out? thank you.
Vladimir [108]
Wow very difficult I am so confused
3 0
2 years ago
Read 2 more answers
Porque sirve el teorema de pitagora​
denis23 [38]

El teorema de Pitágoras se generaliza a espacios de dimensiones superiores. Algunas de las generalizaciones están lejos de ser obvias. El teorema de Pitágoras sirve como base de la fórmula de distancia euclidiana.

Espero que esto ayude, que tengan un día bendecido y maravilloso, ¡así como uno seguro! :-)

-Cutiepatutie

4 0
3 years ago
Can someone plz help me? :(
Maslowich

Answer:

Its C and D I believe

Explanation:

3 0
2 years ago
Read 2 more answers
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