1. If the initial volume of a burette is read at 0.64 mL and the final volume is read as 10.72 mL, what volume of soluti

[answerhappygod]

1. If the initial volume of a burette is read at 0.64 mL and the
final volume is read as 10.72 mL, what volume of solution (in mL)
was delivered from the burette? (Do not include units in your
answer)
2.
If a volumetric flask is filled beyond the graduated mark, the
excess solution should be drained off, i.e. with a Pasteur
pipette.
Select one:
True
False
3. A solution of NaOH is given to you. You are to
determine its concentration. You titrate 50.00 mL of this NaOH
solution against 0.500 mol L-1 HCl solution. You
obtain a mean titre of 40.00 mL. Given the stoichiometry of the
equation below, calculate (a) the amount of NaOH
titrated, nNaOH, and (b) the concentration
of the NaOH solution [NaOH].
NaOH(aq) + HCl(aq) → NaCl(aq) +
H2O(l)
(a) nNaOH = nHCl =
_____ mol
(b) [NaOH] = _______mol L-1
4.
What is the endpoint of a titration?
a.Where the titrant in the burette is used up
b.The titre volume where the analyte is neutralised.
c.The titre volume at which the indicator changes colour.
d.Where the analyte in the conical flask is used up