PLZ HELP I HAVE 8 MINUTES A buffer solution contains 500ml of 0.650 M Sr(La)2 and 500ml of 0.700 M HLa where the pKa (HLa)= 3.76. What is the pH of the buffer ?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

How does a hydroelectric power plant converts energy into energy.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?