Problem 1:
You titrate 30.0 mL of an unknown concentration hydrochloric acid with 18.5 mL of
a 1.5 M KOH. Determine the concentration and pH of the acid.
HCI + KOH) -- HOH + KCI.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

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