Why do noble metals do not corrode in air?
1 answer:
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Answer:
The pH of the final solution is 7.15
Explanation:
50 mL of 2.0 M of and 25 mL of 2.0 M of
were mixed to make a solution
Final volume of the solution after dilution = 200 mL
Final concentration of
Final concentration of
We use Hasselbach- Henderson equation:
Substituting the values:
Therfore, the pH of the final solution is 7.15
Answer: The heat required to melt 25.0 g of ice at is 8350 Joules
Explanation:
Heat of Fusion tells us how much energy is needed to convert 1g of a solid to a liquid at the same temperature.
Q = Heat absorbed = ?
m = mass of ice = 25.0 g
L = Latent heat of fusion of ice = 334 J/g
Putting in the values, we get:
Thus heat required to melt 25.0 g of ice at is 8350 Joules