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How do you determine ka from a titration curve?
Assuming you know how to find the equivalence point on the titration curve, and assuming it is not [strong acid/strong base] or [weak acid/weak base], all you need to do is find the half equivalence point, which gives you the pKa of the first solution. Then to get the Ka, you go 10-pKa .
Do weak acids require more or less base for titration?
If you are aiming for a specific pH they require less of a base. If you need to simply full titrate it, it depends on how much of the acid you have, not how strong it is.
How is the KB of ammonia calculated from the half titration point?
At half titration pH=pKa (you need the pH from the graph of your titration, y axis) ph = pKa + log (base/acid) 10^-pKa = Ka Kw=Ka*Kb Kb=Kw/Ka Ka = Kw/Kb
What is a titration and what equipment would you need?
A titration is a process of nutrilising an acid. You would need a burette, a beaker and and acidic and alkali substance. Higher chem FTW
What is used to identify acids and bases?
an acid is a material or substance that is sour and can change blue litmus paper red a base is a material or substance that is bitter (it sometimes ) and can change red litmus paper blue. Litmus paper can tell an acid from a base Lemon Juice is an acid coffee is a base.
Why does a cola soft drink need to be decarbonated to perform a phosphoric acid titration?
Because carbon dioxide in water is a mild acid and will react with the sodium hydroxide making accurate titration impossible.
A 0.361 molar solution of the weak acid HA with a pKa of 4.039 is titrated with a 0.163 molar solution of NaOH. What is the pH of the solution at the equivalence point of this titration?
You need to know the volume of the weak acid being titrated so you can find how many moles of base are needed to match that of the acid.
Why there is a need to warm the solution of sulfuric acid and oxalic acid during redox titration?
Adding heat to a reaction usually speeds up a reaction.
How do you dilute 30 mL of 12 molar hydrochloric acid to a 0.1 molar hydrochloric acid solution?
in order to dilute the acid, you need to have a good pH meter, a burette, ring stand, burette clamp, and base you want to use. You use the formula Ma * Va = Mb * Vb where Ma is molarity of H+, Va is volume of acid, Mb is Molarity of base and Vb is volume of base. you use that formula to calculate amount of base needed to reach 0.1 molar. to get it exactly right, use a burette and do titration
Why do you need indicators of chemical change?
To indicate the change of its Ph nature either from acid to a base or a base to an acid
What is the concentration of a nitric acid solution if a 10.00 mL sample of the acid requires 31.25 mL of 0.135 M KOH for neutralization?
In an acid-base titration problem, the formula to use is: MaVa = MbVb, where the molarity of the acid times its volume equals the molarity of the base times its volume.Here, we have:Ma(10.00mL) = (0.135M)(31.25mL)Solving for Ma = 4.22M.mL / 10.00mL = 0.422M(Note: This is only valid for monoprotic acid with monoprotic bases only, as in this case. If it were titrated with 0.135M carbonate (CO32-) the findings need to be doubled.)
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