Q12: 50 ml buffer solution contain 0.15 M formic acid HCOOH,ka = 1.8*10-4, and 0.1 M soduim format HCOONa. Calculate: 1.

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Q12 50 Ml Buffer Solution Contain 0 15 M Formic Acid Hcooh Ka 1 8 10 4 And 0 1 M Soduim Format Hcoona Calculate 1 1 (29.2 KiB) Viewed 29 times

Q12: 50 ml buffer solution contain 0.15 M formic acid HCOOH,ka = 1.8*10-4, and 0.1 M soduim format HCOONa. Calculate: 1. PH after addition of 10 ml of 0.2 M HCl solution. (8 degree) 2. PH after addition of 5 ml of 0.3 M NaOH solution. (7 degree) Q13: Oxygen gas produced from the reaction below was collected above the water at 30 Cº and in a container has capacity 150 cm³ until the total pressure reached 80.0 kPa. 2KCIO32KCl +30₂ If the vapor pressure of water at 30 C° equal to 4.24 KPa. Determine: 1. The mass in (g) of dry oxygen produced. (8 degree) 2. The mass in (g) of KCLO that consumed in reaction. (7 degree) {*. =40 9 9 ,0 16: CI= 35.5 R 8.314- mole mole mole' N.m mole. K