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3 years ago

How do catalysts affect energy of reactions

Chemistry

2 answers:

Strike441 [17]3 years ago

5 0

Explanation:

A catalyst lowers the activation energy of a reaction allowing them to proceed faster than they would naturally. Activation energy is the free energy that is required to be input in the reactant side to activate them to the transition state after which the reaction proceeds spontaneously to products.

An example of a catalyst is platinum, that is put in the exhaust of cars, to help convert carbon monoxide to carbon dioxide before it is emitted into the air.

natima [27]3 years ago

3 0

Answer: they lower these activation required for the reactions to take place.

Explanation:

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Volume of the unknown HNO3 sample = 0.120 L

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Step 2: The balanced equation

2HNO3 + Ba(OH)2 ⟶ Ba(NO3)2 + 2H2O

Step 3: Calculate moles Ba(OH)2

moles Ba(OH)2 = molarity * volume

moles Ba(OH)2 = 0.200 M * 0.0451 L

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For 1 mole of Ba(OH)2 we need 2 moles of HNO3

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