18. What is the molarity of all the species present in 0.20 M H2TeOz (Ka, =...
Calculate the concentrations of all species present in 0.14 M H2SO3. (Ka1=1.5×10−2, Ka2=6.3×10−8). Calculate the concentration of H2SO3, HSO3- , H3O+, SO32- in solution.
18. What is the pH of a 100.Oml-solution containing 0.50 M NaF and 0.20 MHF? Ka HF = 6.3 x 10-4 a) 3.60 b) 2.60 c) 3.20 d) 2.80 e) 1.80 19. What is the pH of a solution prepared by mixing 50.0 mL of 0.015 M NaOH and 50.0 mL of 0.012 MHBr? a) 10.18 b) 3.82 c) 11.18 d) 2.82 e) No way to calculate, because K, is not given 20. When solid Cus(PO4)2 dissolves in pure water,...
180Q1 Part A Calculate the pH and the concentrations of all species present in 0.14 M H2SO3. (Ka1 = 1.5×10−2, Ka2 = 6.3×10−8) Express your answer to three significant figures and include the appropriate units. Part B Calculate the concentration of H2SO3 in solution. Express your answer to two significant figures and include the appropriate units. Part C Calculate the concentration of HSO−3 in solution. Express your answer to two significant figures and include the appropriate units. Part D Calculate...
Calculate the concentration of all species present and the pH of a 0.019-M HF solution. Ka for HF is 7.2 x 10-4 a (H+) = [F-]= [HF] = [OH-]= Submit
5.) Calculate the concentrations of all the species and the pH in 0.25 M hypochlorous acid, HOCL. For HOCL, Ka=3.5x10^-8 6.) the pH of a 0.115M solution of chloroacetic acid, CICH2COOH, is measured to be 1.85. Calculate the Ka for this monoprotic acid Calculate the concentrations of all the species and the pH in 0.25 M hypochlorous acid, HOCI. For HOC, Ka :3.5 x 108. .) The pH of a 0.115M solution of chloroacetic acid, CICH2COOH, is measured to be...
NEED HELP ASAP Determine the concentrations of the following ionic species present in a 0.305 M solution of the diprotic acid H2SO3. For H2SO3, Ka1 = 1.4E-2, Ka2 = 6.3E-8. What is the H3O+ ion concentration? What is the HSO3- ion concentration? What is the SO32- ion concentration?
Calculate the concentration of all species in a 0.530 M solution of [H2SO3]. [H2SO3], [HSO3-], [SO32-], [H3O+], [OH-]
NEED HELP ASAP Determine the concentrations of the following ionic species present in a 0.279 M solution of Na2SO3. For H2SO3, Ka1 = 1.4E-2, Ka2 = 6.3E-8 (in M) What is the OH- ion concentration? What is the HSO3- ion concentration? What is the SO32- ion concentration?
Calculate the concentrations of all species in a 1.64 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4×10−2 and Ka2=6.3×10−8. [Na+]= [HSO-3]= [OH−]= [SO232-]= [H2SO3]= [H+]=
a) What is the pH of a solution that consist of 0.20 M ammonia, NH3, and 0.20 M ammonium choride, NH4Cl? (Kb for ammonia is 1.8 x 10-5) b) 1.25 g of benzoic acid (C6H5CO2H) and 1.25 g of sodium benzoate (NaC6H5CO2) are dissolved in enough water to make 250 mL solution. Calculate the pH of the solution using the Handerson-Hasselbach equation (Ka for benzoic acid is 6.3 x 10-5). c) What is the pH after adding 82 mg of...