Titrations (chemistry Only) (GCSE Chemistry)

Which error will shift all titre results by the same constant amount (systematic error) and so give an incorrect concentration?

When titrating a weak acid with a strong base, the pH at the equivalence point is typically:

In a titration, why is it important to invert the volumetric flask several times after making up to the mark?

In a titration calculation you find the moles of titrant used and want moles of analyte. Which information must you use next?

To reduce random error in titration timings and mixing, the best practice is to:

A student obtains titration readings of 23.50, 23.55 and 23.60 cm3 for concordant titres. Which value should be used as the titre in calculations?

A student titrates an acid and then repeats the titration and obtains very different titres because the indicator was added too early in the first run. This is an example of:

A student prepares 250.0 cm3 of 0.100 mol/dm3 sodium hydroxide from a 2.00 mol/dm3 stock solution. What volume of stock solution is needed?

During an acid–base titration the indicator changes colour at the end-point. Which statement best describes the end-point?

You titrate 20.0 cm3 of 0.250 mol/dm3 sodium carbonate (Na2CO3) with 0.100 mol/dm3 hydrochloric acid. Which balanced equation is needed to calculate the concentration of HCl?

What is the main purpose of rinsing a burette with the solution that will be placed in it before filling?