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4 years ago

What would happen if you added more than 5ml of H2O2 to the 5ml of yeast

Chemistry

2 answers:

Jlenok [28]4 years ago

8 0

Answer:

More water and oxygen is produced.

Explanation:

In an experiment which consist of mixing H2O2 with yeast the following reaction occurs:

2 H2O2 -> 2 H2O + 02

Yeast acts as a catalyst, i.e. makes the reaction faster.

The bigger amount of H2O2 you add, the bigger amount of water and oxygen you produce.

anzhelika [568]4 years ago

7 0

Hydrogen peroxide breaks down into water and oxygen.

2H₂O₂ → 2H₂O + O₂

The yeast present contains an enzyme called catalase which catalyses the reaction.

More the amount of the catalyst added, faster will be the decomposition of the hydrogen peroxide.

Thus if we added more than 5 mL of yeast solution to the 2H₂O₂, the breakdown would occur faster. Thus the bubbles and the accompanying fizz would be much more.

Read more on Brainly.com - brainly.com/question/10670134#readmore

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3 years ago

What is the change in enthalpy for the following reaction?

Tju [1.3M]

The given chemical reaction is:

$2H_{2}O_{2}(aq)---> 2H_{2}O(l)+O_{2}(g)$

The standard heats of formation of $H_{2}O and H_{2}O_{2}$ are:

Δ $H_{f}^{0}(H_{2}O$ ) = -285.8kJ/mol[/tex]

Δ $H_{f}^{0}(H_{2}O_{2}$ ) = -187.6 kJ/mol[/tex]

Calculating the change in heat:

Δ $H^{0}_{reaction)$ =∑ΔH $_{f}^{0}(products)$ -∑ΔH $_{f}^{0}(reactants)$

= [{2 * (-285.8 kJ/mol)} -{2*(-187.6 kJ/mol)}]

= -196.4 kJ/mol

Therefore, the change in enthalpy for the given reaction is -196.4 kJ/mol

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4 years ago