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Orlov [11]
3 years ago
14

C5H12 + 8O2 → 5CO2 + 6H2O Calculate the energy change for the reaction:

Chemistry
1 answer:
KATRIN_1 [288]3 years ago
8 0
C5H12 (l) + 8O2 (g) ----> 5CO2 (g) + 6H2O (l)
Delta H = -3505.8 kJ/mol

C (s) + O2 (g) -----> CO2 (g)
Delta H = -393.5 kJ/mol

H2 (g) + (1/2)O2 (g) ------> H2O (l)
Delta H = -286 kJ/mol

Possible answers:
a. +35 kJ/mol
b. + 1,073 kJ/mol
c. -4,185 kJ/mol
d. -2,826 kJ/mol
e. -178 kJ/mol
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A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 264. g of hydrogen gas is produced.
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Answer:

The answer is 130.953 g of hydrogen gas.

Explanation:

Hydrogen gas is formed by two atoms of hydrogen (H), so its molecular formula is H₂. We can calculate is molecular weight as the product of the molar mass of H (1.008 g/mol):

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2 years ago
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lutik1710 [3]
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</span> </span></span>





7 0
3 years ago
U/d21/ms/quizzing/user/attempt/quiz_start_frame_auto.d2l?u=2332447&amp;isprv=&amp;dic=0&amp;q=2942919do
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Answer:

876 grams

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m = dxv = 1.168 g/ml x 750 ml = 876 grams

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2 years ago
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