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dusya [7]
3 years ago
13

The hydronium ion concentration in an aqueous solution is [H+] = 5.3 x10-4 M. What is the hydroxide ion concentration? Is this s

olution acidic or basic?
A.) [OH-] = 1.9 x10-11 M, acidic

B.) [OH-] = 4.7 x10-6 M, basic

C.) [OH-] = 1.1 x10-9 M, acidic

D.) [OH-] = 3.2 x10-8 M, acidic
Physics
1 answer:
VladimirAG [237]3 years ago
6 0

Answer:a

Explanation:

Given

[H^+]=5.3\times 10^{-4}\ M

and pH+pOH=14

Also pH=-\log [H^+]

therefore pH=-\log (5.3\times 10^{-3})

pH=-(-4-\log (5.3))

pH=3.275

Thus pOH=14-3.275

pOH=10.275

and pOH=-\log [OH^{-}]

[OH]^{-1}=10^{-10.25}

[OH]^{-1}=1.88\times 10^{-11}\ M

As the pH is less than 7 therefore solution is acidic

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