Dalam larutan NH4OH 0,1 M (Kb NH4OH = 10^-5), banyaknya H^+ adalah …

Dalam larutan NH4OH 0,1 M (Kb NH4OH = 10^-5), banyaknya H^+ adalah …

Jawaban yang benar adalah 10⁻¹¹ M.

Larutan NH4OH merupakan larutan basa lemah. Untyk mencari konsentrasi OH⁻ digunakan rumus:
[OH⁻] = √(Kb × M)

[OH⁻] = √(Kb × M)
[OH⁻] = √(10⁻⁵ × 0,1 M)
[OH⁻] = 10⁻³ M

[OH⁻] [H⁺] = Kw
[OH⁻] [H⁺] = 10⁻¹⁴
10⁻³ M [H⁺] = 10⁻¹⁴
[H⁺] = 10⁻¹⁴ / 10⁻³
[H⁺] = 10⁻¹¹ M

Jadi, banyaknya H⁺ adalah 10⁻¹¹ M.

Baca Juga :  ANTHEM MUSIC PRESENTS Elliott Tully: Live In Beechtown Rock out and spend the night in sweet escape! Beechtown Amphitheater January 3rd, 2022 06:00 P.M. Catch the award-winning rock star in concert! GET READY TO ROCK! The night is going to be epic! Watch Elliot live as he performs his greatest hits: - All Smiles - Oddball - Beechtown High Days - Little Box and many more! With special performances by: - Floss and Gloss - The Vigilantes Buy your tickets now at www.anthemmusic.com. For inquiries, please call our hotline at (123) 456-7890 or email us at [email protected]. "... as **he** performs his greatest hits...." The bold typed word refers to ....