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Nezavi [6.7K]
2 years ago
10

Nitrous oxide gas is a form of

Chemistry
1 answer:
zepelin [54]2 years ago
6 0
Its a form of anaesthesia used by dentists 

hope that helsp 
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HBr can be added to an alkene in the presence of peroxides (ROOR). What function does the peroxide serve in this reaction
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Answer:

Radical chain initiator

Explanation:

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For all of the following questions 20.00 mL of 0.200 M HBr is titrated with 0.200 M KOH.
HACTEHA [7]

Answer :

The concentration of H^+ before any titrant added to our starting material is 0.200 M.

The pH based on this H^+ ion concentration is 0.698

Explanation :

First we have to calculate the concentration of H^+ before any titrant is added to our starting material.

As we are given:

Concentration of HBr = 0.200 M

As we know that the HBr is a strong acid that dissociates complete to give hydrogen ion H^+ and bromide ion Br^-.

As, 1 M of HBr dissociates to give 1 M of H^+

So, 0.200 M of HBr dissociates to give 0.200 M of H^+

Thus, the concentration of H^+ before any titrant added to our starting material is 0.200 M.

Now we have to calculate the pH based on this H^+ ion concentration.

pH : It is defined as the negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

pH=-\log (0.200)

pH=0.698

Thus, the pH based on this H^+ ion concentration is 0.698

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PLEASE HELP!!!!!!!!!!! WILL AWARD 50 POINTS!!!!!!!!!111
Vinil7 [7]

I am pretty sure the answer is . But I might be wrong.

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