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If a solution of aspirin has a [OH-] = 4.4 x 10–12 M, what is the pH of the solution?
Determine the concentration of CO3 that would be required to cause a precipitation to occur in a 3.0E-4 M solution of barium ions. The Ksp for BaCO3 is 5.1E-9.
What are the changes in pH when in a buffer solution of CH3COOH/CH3COONa you add 1) water 2) CH3COOH 3) CH3COONa 4) HCl .
what is cstr reactor. also define equation .
between Cs.Mg, Cu, Ge, N, S, F which one of them is the least reactive
. Lee Kwang Soo wants to prepare a buffer with a pH of 5.00.
a) What ratio of CH3COO/CH3COOH does she need?
b) How could she mix 0.100 M CH3COOH and 0.100 M NaCH3COO to make this buffer?
c) How could she make this buffer using 0.100 M CH3COOH and 0.100 M NaOH?
d) Name another buffer system she could use.
calculate the standard enthalpy of combustion of methane,given that standard enthalpy of carbon and hydrogen are 393.5 kj mol and -283.83kj mol.standard enthalpy of formation of methane is 75.16 kj mol.?
. Lee Kwang Soo wants to prepare a buffer with a pH of 5.00.
a) What ratio of CH3COO/CH3COOH does she need?
b) How could she mix 0.100 M CH3COOH and 0.100 M NaCH3COO to make this buffer?
c) How could she make this buffer using 0.100 M CH3COOH and 0.100 M NaOH?
d) Name another buffer system she could use.

Find the pH of the following solutions:
a) 0.010 moles HCl in 10.0 liters water.
b) 6.0 g NaOH dissolved in 15.0 liters water.
c) 5.0 ml 0.40 M HBr diluted to 20.0 liters with water.
d) 0.10 M solution of benzoic acid.
e) 0.20 M NaClO.
f) 0.20 moles HCl plus 0.10 moles KOH dissolved in 1.0 liter water.
The molar absorptivity of NADH is 6.22x10³ L. mol¯¹. cm¯¹ at 340 nm. In an alanine transaminase assay mixture of 1.0 ml, containing 20 µl serum, a change in absorbance at 340 nm of 0.600 is found after 5 minutes incubation in a 1 cm cuvette. Calculate the alanine transaminase activity of the serum.
How does the concept of synthetic disability apply to amino acid anabolism in humans?