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Mazyrski [523]
2 years ago
14

What is the pH of an HCL solution if [H+]=0.03​

Chemistry
2 answers:
I am Lyosha [343]2 years ago
4 0

Answer:

pH = 1.5

Explanation:

The pH is always equal to -log[H+].

Simply plug it into this formula to find the pH. In order to find the concentration from the pH, you can do:

10^{-pH} = [H+]

vesna_86 [32]2 years ago
3 0

The answer for the following problem is mentioned below.

  • <u><em>Therefore the pH of an HCl solution is 1.52.</em></u>

Explanation:

<u>pH:</u>

It is a measure of the hydrogen ion concentration,a measure of acidity or the alkalinity of a solution.    

                                           (or)

The negative logarithmic function of the hydrogen ion concentration is called the pH.

The formula for the pH is as follows:

<u>pH = -log [</u>H^{+}<u>]</u>

pH less than 7 indicates that solution is acidic

pH greater than 7 indicates that the solution is basic

Given:

hydrogen ion concentration [H^{+}] = 0.03 = 3 ×10^{-2}

To calculate:

pH of a solution

We know;

<u>pH = -log [</u>H^{+}<u>]</u>

<u>where,</u>

<u></u>H^{+} represents the hydrogen ion concentration

pH = -log [3×10^-2]

pH = 1.52

Therefore the pH of a solution is 1.52

<u><em>Therefore the pH of an HCl solution is 1.52.</em></u>

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A particle of mass 2.0 kg moves under the influence of the force F(x)=(-5x^2+7x)~\text{N}F(x)=(−5x ​2 ​​ +7x) N. If its speed at
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Work done between x = - 4m and x = 4 m is - 213.33 J

Hence, ΔK.E = -213.33 J

Change in kinetic energy of the particle between x = - 4m and x = 4m is ΔK.E

ΔK.E = (Kinetic energy at x = 4m) - (kinetic energy at x = - 4m)

- 213.33 J = (mv²/2) - 400

mv²/2 = -213.33 + 400 = 186.67 J

2v² = 2 × 186.67

v² = 186.67

v = 13.66 m/s.

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