Chemistry, 26.12.2020 18:40 ajayrose

Calculate the H+ ion concentration in a 8.8 x 10-4 M Ca(OH)2
solution.

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Answer from: AdoNice

The concentration of Hydrogen ion [H⁺] in 8.8×10¯⁴ M Ca(OH)₂ is 5.68×10¯¹² M

The concentration of Hydrogen ion [H⁺] in a solution talks about the acidicity the solution. Thus, we can obtain the concentration of Hydrogen ion [H⁺] in 8.8×10¯⁴ M Ca(OH)₂ solution as illustrated below:

Step 1:

Data obtained from the question

Concentration of Ca(OH)₂ = 8.8×10¯⁴ M

Concentration of Hydrogen ion [H⁺] =..?

Step 2:

Determination of the concentration of Hydroxide ion [OH¯]

Concentration of Ca(OH)₂ = 8.8×10¯⁴ M

Concentration of Hydroxide ion [OH¯] =?

Ca(OH)₂ (aq)⇄Ca²⁺ (aq) + 2OH¯(aq)

From the balanced equation above,

1 mole Ca(OH)₂ produced 2 moles of OH¯.

Therefore, 8.8×10¯⁴ M Ca(OH)₂ will produce = 8.8×10¯⁴ × 2 = 1.76×10¯³ M

Thus, the Concentration of Hydroxide ion [OH¯] is 1.76×10¯³ M

Step 3:

Determination of concentration of Hydrogen ion [H⁺]. Concentration of Hydroxide ion [OH¯] = 1.76×10¯³ M

Concentration of Hydrogen ion [H⁺] =..?

$H^{+} * OH^{-} = 1*10^{-14}\\H^{+} * 1.76^{-3} = 1*10^{-14}$

Divide both side by 1.76×10¯³

$H^{+} = \frac{1*10^{-14} }{1.76*10^{-3}}\\$

[H⁺] = 5.68×10¯¹² M

Therefore, the concentration of Hydrogen ion [H⁺] in the solution is 5.68×10¯¹² M

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Answer from: loganjune5033

form the molar concentration of the Ca(OH)2 which is a base we can deduct the pOH

pOH=-lg[OH-]

[OH-]=8.8 x 10-4 M

pOH=4

pH=14-pOH

pH=10

-lg[H+]=10

[H+]=10^-10

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

Answer from: Quest

Less stable hope this

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Calculate the H+ ion concentration in a 8.8 x 10-4 M Ca(OH)2
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