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Buffer Solution:    • Larutan Penyangga   let's join membership to watch and learn from selected question discussion videos click the following link    / @tanyasoal   ----------------------- follow instagram account: Tanya Soal   / tanya.soal   Rudi Tandean   / rudi.tandean.apt   . support for this channel: https://sociabuzz.com/tanyasoal/donate . TanyaSoal provides premium services discussing questions via whatsapp service, DM admin tanysoal for more info Thank you ----------------------- . The following mixtures that can form a buffer solution are 3. Among the following mixtures that can form a buffer solution are A. 100 ml of 0.1 M NaOH + 100 mL of 0.1 M HCI A. HCl and NH CI B. NaOH and CH,COONa B. 100 ml of 0.1 M NaOH + 100r . NaCN 0.1 M C. HBr and NaBr D. KOH and KCI C. 100 mL NaCN 0.1M + 100n HCN 0.1 M E. NH OH and NH CI D. 100 mL NH, OH 0.1 M+ 50mL*H_{2}*S O + 0.1 M 4. The pH value of a mixture of 100 c * m ^ 3 of 0.1 M NH OH solution with 50 cm³ of 0.1 M HCI solution is (K NH . OH = 10 ^ - 9 ) A. 5 B. 5-log 2 C. 9 - log(2) E. 100 ml. K_{2}*S*O_{4} 0.1 M + 50 mL H,SO, 0.1 M 2. The following shows the pH values ​​of several solutions when a little acid and a little base are added. D. 9 E. 9 + log(2) 5.() If a solution of C*H_{3} COOH ( K_{2} C*H_{3} COOH=10^ -9 ) and CH, with the same concentration are mixed to form a buffer solution with a pH of 6 log 5, then the ratio of the volume of CH,COOH: CH,COONa is PH After Addition Initial pH Solution Slightly Acidic Slightly Basic P 3.0 1.0 4.0 Q 5.0 4.9 5.1 R 8.0 7.9 8.1 A. 1:1 B. 1:2 S 9.0 8.5 10.5 C. 1:3 T 10.0 8.5 11.0 D. 2:1 E. 2:3 The solution that is a buffer system is A P and Q D. S and T B. R and T E. R and S C. Q and R