3 years ago

Mg(OH)2 + HCl --> MgCl2 + H2O

1 answer:

6 0

I am guessing you want us to balance this equation so.
To balance, we add another molecule of HCl to the left side of the equation and another molecule of water (H20) to the right side of the equation to give:

Mg(OH)2 + 2HCl = MgCl2 + 2H20

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If a weak acid is 25% deprotonated at ph 4, what is the pka?if a weak acid is 25% deprotonated at ph 4, what is the pka?

Oksanka [162]

4.48
pH=pKa+log([A-/HA])

25% deprotonated tells us that A- is .25 and that the rest (75% is protonated) thats .75.

4 = pKa + log $\frac{.25}{.75}$
4 - log $\frac{.25}{.75}$ = pKa
4.48=pKa

7 0

3 years ago

Read 2 more answers

Monobromination of toluene gives a mixture of three bromotoluene products. Draw and name them.

Art [367]

Answer:

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Explanation:

Hello,

In this case, on the attached picture you will find the reaction which yields o-bromotoluene as the first product, m-bromotoluene as the second product and p-bromotoluene as the last one since the substitution could be done at the second (ortho), third (meta) or fourth (para) carbons on the toluene.

Regards.