Calculate [H30] for the following solutions. a) 6.16 x 10 ^-3 M HBr b) 1.80 x...

Calculate [H30] for the following solutions. a) 6.16 x 10 ^-3 M HBr b) 1.80 x 10^-2 M KOH

Expert Solution

(a) Given concentration of HBr = 6.16x10^-3 M

HBr+ H₂O H₃O⁺ + Br^-

1 mole of HBr produces 1 mole of H₃O⁺

So [H₃O⁺] = [HBr] = 6.16x10^-3 M

(b) Given concentration of KOH = 1.80x10^-2M

KOH K⁺ + OH^-

1 mole of KOH produces 1 mole of OH^-

So [OH^-] = [KOH] = 1.80x10^-2M

We know that [H₃O⁺][OH^-] = 1.0x10^-14 M

[H₃O⁺] = (1.0x10^-14 ) / [OH^-]

= (1.0x10^-14 ) / (1.80x10^-2)

= 5.55x10^-13 M

queen_honey_blossom answered 1 year ago

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