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galina1969 [7]
2 years ago
5

What is hydrogen ion concentration of an acid solution whose PH is 3.4?​

Chemistry
1 answer:
meriva2 years ago
4 0
It’s easy, if the PH of any acidic solution = -Log[H+], where [H+] is hydrogen ion concentration, multiply each term by (-1) then raise each term as a power to (10), so it will become like this:-
[H+] = 10^(-PH)
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A solution is prepared by dissolving 2.61 g ethanol (C2H5OH) in 16.2 g water. What is the molality (mol/kg) of C2H5OH in the sol
stiks02 [169]

Answer:

3.50 molal

Explanation:

Molality → Moles of solute / kg of solvent.

Let's convert the solvent's mass from g to kg

16.2 g . 1kg / 1000 g = 0.0162 kg

Let's determine the moles from the solute

2.61 g . 1 mol / 46 g = 0.0567 moles

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7 0
3 years ago
What is the [H+] of a solution with a pH of 3? Use a scientific calculator.
Mariulka [41]

Answer:

1 x 10⁻³.

Explanation:

∵ pH = - log[H⁺]

3 = - log[H⁺].

log[H⁺] = -3.

∴ [H⁺] = 1 x 10⁻³.

3 0
3 years ago
Which of the following provides cell support in an animal cell? A. microtubule B. mitochondria C. lysosomes D. vacuole
Viktor [21]

Answer:

D.

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Explanation:

Hope this helps:)

4 0
3 years ago
Which group (give the number) is characterized by 5 valence electrons in the configuration<br> s²p3?
Ivahew [28]
<h3>Answer:</h3>

Group 5A

<h3>Explanation:</h3>
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  • For example, elements in group 5A have five valence electrons with the most high energy level with a configuration of s²p³.
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5 0
3 years ago
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ZanzabumX [31]

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All these enables different application of liquid crystals

To know  more about liquid crystals here

brainly.com/question/24378459

#SPJ4

7 0
1 year ago
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