the density of vinegar was determined using a pycnometer. the empty pycnometer weighed 0.495g at...

the density of vinegar was determined using a pycnometer. the empty pycnometer weighed 0.495g at 23degree celcius. filled with vinegar, it weighed 0.899g. filled with water, it weighed 0.896g. the density of water at 23degree celcius is 0.9975g/cm3. a 0.825cm3 sample of NaOH was standardized using 0.815cm3 of 0.0969 M potassium hydrogen phthalate (KHP). the standardized solution was then used to titrate 0.250cm3 of the vinegar. the volume of NaOH needed was 2.205cm3
the stoichiometry of the reaction is: C2H4O2(aq) + NaOH(aq) =Na+(aq) +C2H3O2(aq) + H2O(l)..
(1) calculate the density of the vinegar.
(2) find the conc. of acetic acid in the vinegar in moles per litre, grams per litre & percent by weight.
Q2.....
what amount of oxalic acid (H2C2O4.2H2O, MW = 126.0g/mol) is required to prepare 10cm3 of 0.130M oxalic acid solution?

In Chemistry
1 Answers Available
Asked by Moses Idorenyin on 15th March, 2019