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Mila [183]
3 years ago
13

For a particular reaction, ΔH=−111.4 kJ/mol and ΔS=−25.0 J/(mol·K).

Chemistry
1 answer:
PtichkaEL [24]3 years ago
3 0
That’s the answer ^^^^
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The following reaction is done at
bagirrra123 [75]

Answer: 280dm3

Explanation:Please see attachment for explanation

3 0
3 years ago
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CO2 dissolves in water to form carbonic acid: H2CO3 <---> H+ + HCO3-Ka1 = 4.3 x l0^-7 HCO3- <---> H+ + CO3-2 Ka2 = 4
Alisiya [41]

Answer:

Ratio of [CO₃²⁻] / [H₂CO₃] is 1.0x10⁻⁸

Explanation:

Based on the equilibriums:

H₂CO₃ ⇄ H⁺ + HCO₃⁻ Ka1 = 4.3x10⁻⁷

HCO₃⁻ ⇄ H⁺ + CO₃²⁻ Ka2 = 4.8x10⁻¹¹

The sum of both equilibriums is:

H₂CO₃ ⇄ 2 H⁺ + CO₃²⁻ K' = 4.3x10⁻⁷*4.8x10⁻¹¹ = 2.064x10⁻¹⁷

Where K' is defined as:

K' = 2.064x10⁻¹⁷ = [H⁺]² [CO₃²⁻] / [H₂CO₃]

If concentration of H⁺ is 4.5x10⁻⁵M:

K' = 2.064x10⁻¹⁷ = [4.5x10⁻⁵]² [CO₃²⁻] / [H₂CO₃]

1.0x10⁻⁸ = [CO₃²⁻] / [H₂CO₃]

Thus, <em>ratio of [CO₃²⁻] / [H₂CO₃] is 1.0x10⁻⁸</em>

3 0
3 years ago
Please help me...thank you so much..
Bezzdna [24]

Answer:

you do it

Explanation:

8 0
3 years ago
Chemically balance the equation: Mg(HCO3)2 + HCL --&gt; MgCl2 + CO2 + H2O​
quester [9]

Answer:

Mg(HCO3)2 + 2HCl → 2CO2 + 2H2O + MgCl2

Explanation:

Mg(HCO3)2 + 2HCl → 2CO2 + 2H2O + MgCl2

8 0
2 years ago
The system of electrons surrounding the nucleus of an atom
Mashutka [201]
Shielding electrons
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3 years ago
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