Chemistry, asked by gulabjan8, 1 year ago

what will be the pH of water at 50°C?

Answers

Answered by Aruna421

6.33 will be the pH of pure water.

HOPE IT HELPS YOU...

gulabjan8: will it be considered acidic or what?

samyakkothiya: ofcourse acidic

ujjwal97407a: will be around 7. 13.3 is very alkaline, on par with a strong alkaline such as NaOH.

First, you need your Kw value. Just looked in my notes, and for 60 degrees it is 5.60 x 10-14 mol2 dm-6. Check the question and use the value from there. I'll use the 60 degrees value for this example.

Kw = [H+][OH-]

so [H+][OH-]

[H+](squared) = 5.60 x 10-14

[H+] = square root of 5.60 x 10-14

[H+] = 2.366 x 10-7 mol dm-3

-----
pH = -log10 [H+]

so log 2.366 x 10-7 = 6.62

pH = 6.62

gulabjan8: I guess it will be neutral cuz both H ion and OH ion concentration will be same what do you say

Answered by samyakkothiya

Answer:

look if we increase the temperature then pH will decrease, the pH of water at room temperature I mean at 27° centigrade is is 7 and if you increase it to 50°Celsius the pH will become slightly less approx 6.5 and if you increase at 100° Celsius then pH will be 6.14

gulabjan8: will it be considered acidic or what?

samyakkothiya: bro we will say it acidic

samyakkothiya: as we are boiling the water and thus decreasing the bond strength

samyakkothiya: so it will donate h + Ion more easily

gulabjan8: it may donate OH ion too.... ?

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