A buffer solution consists of moderately high concentrations of an acid and its conjugate base. An example is a solution containing 0.1M carbonic acid # (H_2CO_3)# and 0.1M bicarbonate ion # …

Apr 17, 2017 · Stalin wanted a large buffer zone between the USSR and the West in case fighting was renewed post war. Post War politics descended rapidly into the Cold War. Western governments had …

"Old pH = 4.72"; "New pH = 4.70" > The strategy to follow is a) Write the chemical equation for the buffer. b) Calculate the "pH" of the buffer. c) Calculate the moles of "HCl" added. d) Calculate the …

This equation can be used to calculate the pH of a buffer solution, which, as you know, contains a weak acid and its conjugate base or a weak base and its conjugate acid in comparable amounts.

Why has Earth's human carrying capacity increased greatly? Consider a stable frog population living at carrying capacity in a pond. If an average female produces 6,000 eggs during her lifetime and an …

Here's one recipe. > It makes 1 L of 0.010 mol/L phosphate buffer of pH 7.2 with ionic strength 0.154 mol/L. The ingredients 0.39 g (0.0028 mol) of "NaH"_2"PO"_4·"H"_2"O" 1.93 g (0.0072 mol) of …

Aug 3, 2016 · Here's what I got. The idea here is that the heat given off by your reaction will be absorbed by the calorimeter. -q_"given off" = q_"absorbed" The minus sign is used here because …

Apr 25, 2014 · The temperature of water holds very stable because of its high specific heat capacity. Specific heat capacity is a measurement of how much heat has to be added to or released from a …

I need to prepare 100.0mL of a 0.200M acetate buffer of pH 5.00. All I am given is solid sodium acetate and 1.00M of acetic acid. What is the volume of acetic acid used and the mass of sodium acetate …

You took 15.0 µL of the sample and diluted it with 15.0 µL of buffer to get 30.0 µL of solution. You get the new concentration from a standard dilution calculation.