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FromTheMoon [43]
4 years ago
14

An automobile gasoline tank holds 42 kg of gasoline. When the gasoline burns, 168 kg of oxygen are consumed and carbon dioxide a

nd water are produced. What total combined mass of carbon dioxide and water is produced?
Chemistry
1 answer:
Georgia [21]4 years ago
5 0

Answer:

210 kg

Explanation:

The chemical reaction will look like this:

gasoline + O₂ (oxygen) → CO₂ (carbon dioxide) + H₂O (water) + heat

Now in chemical reactions the quantity of the reactants (gasoline + oxygen) is equal to the quantity of products (carbon dioxide + water), so from this principle we may determine:

combined mass of carbon dioxide and water produced = mass of gasoline + mass of oxygen

combined mass of carbon dioxide and water produced = 42 + 168  = 210 kg

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For the following reaction, 5.78 grams of chlorine gas are mixed with excess iron. The reaction yields 6.79 grams of iron(III) c
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Explanation:

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5 0
3 years ago
A certain reaction has an activation energy of 67.0 kJ/mol and a frequency factor of A1 = 4.20×1012. What is the rate constant,
MrRa [10]

Answer:

  • K = 7.00

Explanation:

<u>1) Arrhenius equation</u>

Arrhenius equation shows the relation between activation energy, temperature, and the equilibrium constant.

This is the equation:

       K=Ae^{-Ea/RT}

Where:

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  • A is the frequency factor,
  • Ea is the activation energy (in J/mol),
  • T is the temperature in kelvins (K), and
  • R is the universal constant.

<u></u>

<u>2) Substitute, using the right units, and compute:</u>

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  • Ea = 67.0 kJ/mol = 67,000 J/mol
  • T = 24.0°C = 24.0 + 273.15 K = 297.15 K
  • R = 8.314 J/K mol

K=Ae^{-Ea/RT}=(4.20)(10)^{12}e^{-67,000J/mol/(8.314J/molK.297.15K)}

  • K = 7.00
5 0
3 years ago
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