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Aleks [24]
3 years ago
10

If the specific heat of water is 4.18 3/g*^ C much heat is required to increase the temperature of 12 g of water from 23 degrees

* C to 39 degrees * C ^ 2

Chemistry
1 answer:
12345 [234]3 years ago
3 0

Answer:

Q = 802.6 J

Explanation:

Given data:

Specific heat capacity of water = 4.18 J/g.°C

Mass of water = 12 g

Initial temperature = 23°C

Final temperature = 39°C

Heat required = ?

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 = 39°C - 23°C

ΔT = 16 °C

Q = 12 g× 4.18 J/g.°C × 16 °C

Q = 802.6 J

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We'll begin by writing the balanced equation for the reaction. This is given below:

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From the balanced equation above,

The mole ratio of the acid, H₂SO₄ (nA) = 1

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Next, data obtained from the question. This include the following:

Volume of acid, H₂SO₄ (Va) = 25 mL

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Divide both side by 50

Ma = 3.5241 / 50

Ma = 0.0705 M

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