Calculate the pH of a 0.080 M solution of the weak base pyridine  C5H5N: Kb= 1.7 x 10-9

The pH of an aqueous solution of 0.324 M diethylamine (a weak base with the formula (C₂H5)2NH) is

Determine the pH of the following solutions:   (a) 50.0 mg of naproxen (pKa = 4.2) sodium dissolved in 10 mL water   (b) 1.0 mM cocaine (pKa = 8.6)

Calculate the pH of 0.045 C5H5N (Pyridine) K_b= 1.7 x 10^-9 for C5H5N

The pH of an aqueous solution of 0.458 M pyridine (a weak base with the formula C5H5N) is ?

A solution is prepared at 25 °C that is initially 0.48 M in diethylamine ((C,H5)¸NH), a weak base with K,=1.3 × 10 -3 and 0.024M in diethylammonium bromide ((C,H5) NH,Br). Calculate the pH of the solution. Round your answer to 2 decimal places. pH olo Ar

a) Write the formula for the conjugate base of HPO,2 b) Write the formula for the conjugate acid of NH;

Calculate the pH at 25 °C of a 0.41M solution of pyridinium chloride (C;H;NHC1). Note that pyridine (C,H;N) is a weak base with a p K, of 8.77. Round your answer to 1 decimal place. PH =

Which one of the following correctly shows the weak acid equilibrium for trichloroacetic acid, CCI,COOH? A) CCI,COOH (aq)= CC,Co (aq) + ОН (аq) в) ССІ СООН (аq) + н.о () — CC,COOH, (aq) + OH (aq) С) CI СООH (aq) + Н,О (1) CCI,CoO (aq) + H,0* (aq) D) CCI,COOH (aq) + H,O (1) = CC,CO(OH), (aq) + H* (aq)

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