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Lisa [10]
3 years ago
12

Please help :))

Chemistry
1 answer:
Leni [432]3 years ago
7 0

Answer:

3

Explanation:

Al + CuSO₄ → Al₂(SO₄)₃ + Cu

two aluminum atoms in products. put 2 in front of Al in reactants.

2 Al + CuSO₄ → Al₂(SO₄)₃ + Cu

three sulfur atoms and twelve oxygen atoms in products. put 3 in front of CuSO₄ in reactants.

2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + Cu

three copper atoms in reactants. put 3 in front of Cu in products.

2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + 3 Cu

The equation is balanced. Hope that helps.

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Answer:
               Cp  =  0.093 J.g⁻¹.°C⁻¹
Solution:

The equation used for this problem is as follow,

                                                  Q  =  m Cp ΔT   ----- (1)

Where;
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            m  =  mass  =  267 g

            Cp  =  Specific Heat Capacity  =  ??

            ΔT  =  Change in Temperature  =  12 °C

Solving eq. 1 for Cp,

                                 Cp  =  Q / m ΔT


Putting values,
                                 Cp  =  300 J / (267 g × 12 °C)

                                 Cp  =  0.093 J.g⁻¹.°C⁻¹
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