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2 years ago

Briefly describe how the pH of a colourless solution could be measured using a universal indicator

Chemistry

1 answer:

Firdavs [7]2 years ago

4 0

Answer:

Universal indicator can show us how strongly acidic or alkaline a solution is, not just that the solution is acidic or alkaline. This is measured using the pH scale , which runs from pH 0 to pH 14.

Explanation:

~Hope this helps

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3 years ago

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From standard reduction potentials, calculate the equilibrium constant at 25 ∘c for the reaction 2mno−4(aq)+10cl−(aq)+16h+(aq)→2

garik1379 [7]

Answer:

$\boxed{\text{57.9}}$

Explanation:

Step 1. Determine the cell potential

E°/V

2MnO₄⁻ + 16H⁺ + 10e⁻ → 2Mn²⁺+ 8H₂O 1.507

10Cl⁻ ⟶ 5Cl₂ + 10e⁻ -1.358 27

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Step 2. Calculate K

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$0.149 = \dfrac{8.314 \times 298.15}{10\times 96 485} \ln K\\\\0.149 = 0.002 570 \ln K\\\\\ln K = \dfrac{0.149}{0.002570} = \textbf{57.9}$

The value of the equilibrium constant is $\boxed{\textbf{57.9}}$

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2 years ago

When balancing an equation, should you adjust the subscripts or the coefficients?

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B: CA has more ionization energy than BA.
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D: AR has more ionization energy than P

E: CI has a more ionization energy than SI
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Answer:

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Explanation:

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So as per the given situation the above represent the answer

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3 years ago

Briefly describe how the pH of a colourless solution could be measured using a universal indicator​

Briefly describe how the pH of a colourless solution could be measured using a universal indicator