The ka of hydrofluoric acid (hf) at 25.0 degrees celsius is 6.8*10-4. what is the ph of a 0.15m aqueous solution of hf? the ka of hydrofluoric acid (hf) at 25.0 c is 6.8 x10-4. what is the ph of a 0.15 m aqueous 8) solution of hf? a) 4.60 b) 0.82 c)3.64 d) 1.17 e) 2.00

E) 2.00

Explanation:

Step 1. Calculate the concentration of hydronium ion

We can use an ICE table to organize the calculations.

                      HF + H₂O ⇌ H₃O⁺ + F⁻

I/mol·L⁻¹:       0.15                   0       0

C/mol·L⁻¹:      -x                     +x      +x

E/mol·L⁻¹:   0.15 - x                 x        x

Step 2. Calculate the pH

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .