What is the pH of a 0.78 M solution of CCI3COOLI? The pKa of CCI3COOH is...
What is the pH of a 0.44 M solution of LiF? The pKa for HF = 3.2 Answer to one decimal place.
What is the pH of a 0.02 M solution of potassium benzoate solution (K+ -OOCC6H5). The pka of benzoic acid is 4.19. (Write answer to the hundredths place). What is the pH of a 0.02M solution of potassium benzoate solution (K+ -OOCC6H5). The pka of benzoic acid is 4.19. (Write answer to the hundredths place)
Calculate the pH of a 0.069 M solution of an organic acid HA in water (pKa= 4.6). Present your answer as a numerical value only, to one decimal place, in the form x.xEx. Preliminary Note Although this is not applied in this question, the significant figures in logs (and therefore in pK's and pH's) are only counted after the decimal point. Thus pH values of 15.76, 5.76, 0.76 and 0.01 are all accurate to two significant figures. Answer:
Calculate the pH at 25°C of a 0.77M solution of potassium acetate KCH3CO2 . Note that acetic acid HCH3CO2 is a weak acid with a pKa of 4.76 . Round your answer to 1 decimal place. Calculate the pH at 25 °C of a 0.77 M solution of potassium acetate (KCH,CO2). Note that acetic acid (HCH,CO2 is a weak acid with a pK, of 4.76. Round your answer to 1 decimal place. pH = 0 5 ?
Calculate the approximate pH of an aqueous solution of a mixture of CH3COOH, 0.27 M, and CH3COONa, 0.15 M, at 25°C. (Note: consider one decimal place for the pH answer.) pKa = 4.76.
Calculate the approximate pH of an aqueous solution of sodium carbonate Na2CO3 , 0.28 M, at 25°C. (Note: consider one decimal place for the pH answer.) pKa H2CO3 /HCO3− = 6.35, pKa HCO3- /CO32-= 10.30
What is the pH of a buffer that is 0.34 M HF (pKa = 3.15) and 0.77 M KF? A. A) 2.23 B. B) 11.11 C. C) 4.42 D. D) 3.51 E. E) 2.86
Calculate the approximate pH of an aqueous solution of ammonium chloride, NH4Cl , 0.03 M, and sodium acetate, CH3COONa, 0.12 M at 25°C. (Note: consider one decimal place for the pH answer.) pKa NH4+/NH3 = 9.24 pKa CH3COOH/CH3COO- = 4.76
Trans-crotonic acid (C4H6O2) has a pka of 4.69. What is the pH of a 0.035 M solution of this acid. (Write answer to the hundredths place)
Calculate the approximate pH of an aqueous solution of H2S , 0.05 M, and H3PO4, 0.21 M at 25°C. (Note: consider one decimal place for the pH answer.) pKa H2S/HS- = 7.02, pKa HS-/S2- = 13.99 pKaH3PO4/ H2PO4- =2.15, pKaH2PO4-/HPO42-=7.15, pKa HPO42-/ PO43- =12.38