please help me with these questions! At a concentration of 1 M, the weak acid HNO,...
At a concentration of 1 M, the weak acid HNO, is 2% ionized, and the pH of the solution is 1.7. What happens when KNO, (s) is dissolved into the solution? The extent of HNO, ionization The concentration of H+ The pH You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK. = 4.20) and 0.180 M sodium benzoate. How many milliliters of each solution should be mixed to prepare this buffer?...
A 0.453 g sample of a monoprotic acid is dissolved in water and titrated with 0.260 M KOH. What is the molar mass of the acid if 29.0 mL of the KOH solution is required to neutralize the sample?
1 . If a buffer solution is 0.260 M in a weak acid (?a=8.3×10−5)and 0.480 M in its conjugate base, what is the pH? pH= 2. If a buffer solution is 0.200 M in a weak base (?b=5.0×10−5) and 0.530 M in its conjugate acid, what is the ph 3. Phosphoric acid is a triprotic acid (?a1=6.9×10−3, ?a2=6.2×10−8 , and ?a3=4.8×10−13 To find the pH of a buffer composed of H2PO4 - (aq) ) and HPO4 2− (aq) , which...
A 0.317 g sample of a monoprotic acid is dissolved in water and titrated with 0.100 M KOH. What is the molar mass of the acid if 16.5 mL of the KOH solution is required to o neutralize the sample? molar mass: g/mol
A 0.372 g sample of a monoprotic acid is dissolved in water and titrated with 0.210 M KOH.0.210 M KOH. What is the molar mass of the acid if 29.5 mL of the KOH solution is required to neutralize the sample? molar mass in g/mol
A 0.767 g sample of a monoprotic acid is dissolved in water and titrated with 0.190 M KOH. What is the molar mass of the acid if 32.0 mL of the KOH solution is required to neutralize the sample? molar mass: g/mol
A 0.597 g sample of a monoprotic acid is dissolved in water and titrated with 0.160 M KOH. What is the molar mass of the acid if 27.0 mL of the KOH solution is required to neutralize the sample? molar mass: g/mol
A 0.298 g sample of a monoprotic acid is dissolved in water and titrated with 0.320 M KOH. What is the molar mass of the acid if 15.5 mL of the KOH solution is required to neutralize the sample? molar mass: ________ g/mol
A 0.117 g sample of a monoprotic acid is dissolved in water and titrated with 0.100 M KOH. What is the molar mass of the acid if 13.0 mL of the KOH solution is required to neutralize the sample? molar mass: g/mol
A 0.173 g sample of a monoprotic acid is dissolved in water and titrated with 0.120 M NaOH. What is the molar mass of the acid if 10.5 mL of the NaOH solution is required to neutralize the sample? molar mass: 274.6 molar mass: 274.6 g/mol g/mol