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eimsori [14]
3 years ago
6

ENTHALPY! Please Help

Chemistry
2 answers:
Alexus [3.1K]3 years ago
7 0

hey it wont let me go to page

malfutka [58]3 years ago
3 0
Find the number of mol by dividing the mass by the molar mass of methane (12+1+1+1+1). Then divide the energy produced by the number of mol and you get the energy released from burning 1 mol of methane.
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Write the chemical equation for the reaction of Fe(II) ion (Fe2 ) with phenanthroline. (Use the abbreviation phen for the phenan
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Ammonia (NH3) can be synthesized from nitrogen gas (N2) and hydrogen gas (H2) by the following reaction.
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Answer:

                      %age Yield  =  66.05 %

Explanation:

                     In order to check the efficiency of a reaction the %age is calculated so that it can be concluded that either the conditions provided for certain reactions are favourable or not because at large scales reactions with greater %age yields are favoured as it results in high product quantity and hence, greater economical advantages.

                   The percent yield is given as;

                  %age Yield  =  Actual Yield / Theoretical Yield × 100

Putting values,

                   %age Yield  =  253 g / 383 g × 100

                   %age Yield  =  66.05 %

Hence, for the given reaction the success of the reaction is only 65% hence, steps can be made to improve this yield by modifying the reaction conditions.

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3 years ago
Use the diagram to answer the question.
Anna [14]

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The answer is C (same age as Q)

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