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3 years ago

When the equation Al(OH)₃ + H₂SO₄ ---> Al₂(SO₄)₃ + H₂O is balanced, the sum of the balancing coefficients is

Chemistry

1 answer:

denis-greek [22]3 years ago

5 0

Answer:

The answer to your question is the letter D. 12

Explanation:

Unbalanced chemical reaction

Al(OH)₃ + H₂SO₄ ⇒ Al₂(SO₄)₃ + H₂O

Reactants Elements Products

1 Al 2

1 S 3

5 H 2

7 O 13

Balanced chemical reaction

2Al(OH)₃ + 3H₂SO₄ ⇒ Al₂(SO₄)₃ + 6H₂O

Reactants Elements Products

2 Al 2

3 S 3

12 H 12

18 O 18

Sum up the coefficients

Result = 2 + 3 + 1 + 6

= 12

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Answer:

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Explanation:

We have,

Initial volume, $V_1=22\ ml$

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$PV=k\\\\P_1V_1=P_2V_2$

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$P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{22\times 101\times 10^3}{50}\\\\P_2=44440\ Pa\\\\P_2=44.4\ kPa$

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