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shtirl [24]
3 years ago
15

What is the pH of a solution made by diluting 1.00 mL of 0.10 M HCl with enough distilled water to make 1.00 L of solution?

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
3 0

Answer:

The answer to your question is  pH = 4

Explanation:

Data

Volume 1 = V1 = 1 ml = 0.001 l

Concentration 1 = C1 = 0.1 M

Volume 2 = V2 = 1 l

Concentration 2 = C2 = ?

Process

1.- Find the new concentration of the solution

                    C₁V₂  = C₂V₂

Solve for C₂

                     C₂ = C₁V₁ / V₂

Substitution

                     C₂ = (0.1 x 0.001) / 1

Result

                     C₂ = 0.0001 M

2.- Find the pH of the solution

Formula

                pH = -log[H⁺]

Substitution

                pH = - log[0.0001]

Simplification

                pH = 4                  

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A piece of iron is heated to 95.0 celsius and then placed in an insulated vessel containing 250. grams of water at 25.0 celsius.
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Answer:

c) 387g

Explanation:

Water;

Mass = 250g

Specific heat = 4.184

Initial Temp, T1 = 25 + 273 = 298K

Final Temp, T2 = 35 + 273 = 308K

Heat = ?

H = mc(T2 - T1)

H = 250 * 4.184 (308 - 298)

H = 10460 J

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Initial Temp, T2 = 95 + 273 = 368K (Upon converting to kelvin temperature)

Mass = ?

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