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Step2247 [10]
2 years ago
5

what is the specific heat capacity 82.4g of a metal that is absorbed 846 joules of heat as the temperature increases from 25c to

67c
Chemistry
1 answer:
Nadya [2.5K]2 years ago
4 0

Answer:

Specific heat capacity = 0.24 j/g.°C

Explanation:

Given data:

Mass of metal = 82.4 g

Heat absorbed = 846 j

Change in temperature = 67°C - 25°C

Specific heat capacity = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 67°C - 25°C

ΔT = 42°C

Q = m.c. ΔT

846 j = 82.4 g . c. 42°C

c = 846 j / 3460.8 g.°C

c = 0.24 j/g.°C

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Answer:

The answer to your question is pH = 6.3

Explanation:

Data

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pH is the measure of the concentration of [H⁺]. pH measures the acidity of the solution. If the value of pH is between 0 and 6.9, the solution is an acid. If the pH is 7.0 the solution is neutral and if the pH is between 7.1 and 14, the solution is an alkali.

Formula

pH = -log[H⁺]

Substitution

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