A chemistry problem by Hobart Pao

Chemistry Level 2

True or False:

All neutral solutions have a pH of 7.

True False

Hobart Pao by Hobart Pao , 23, USA

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2 solutions

Hobart Pao
Mar 20, 2017

Consider water at 60 celsius. The K w = 1 0 − 13 K_w = 10^{-13} . Therefore, p H = log ⁡ ( 1 0 − 13 ) = 6 , 5 pH = \log(\sqrt{10^{-13}}) = 6,5 . However, the solution is still neutral because [ O H − ] = [ H + ] [OH^-]=[H^+] .

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Nivedit Jain
Mar 20, 2017

At 100*C pH of water is 6 ( neutral solution).

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