What is the ph of a buffer that is 0.090 m in formic acid (hcho2) and 0.150 m in potassium formate (kcho2)? for formic acid, ka=1.8×10−4. what is the of a buffer that is 0.090 in formic acid and 0.150 in potassium formate ? for formic acid, . 3.52 3.57 3.97 3.91

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature