tolong dibantu kak besok dikumpul udah pusing wkwk

[H+] = akar(Kw/Kb × Mgaram × valensi)
10^-5 = akar(10^-14/10^-5 × gr/53.5 × 1000/500 × 1)
10^-5 = akar(10^-9 × gr × 4 x 10^-2)
10^-10 = 4 x 10^-11 × gr
0.25 x 10^1 = gr
2.5 gram.