Calorymetry

    Calorymetry

    A small description of the activities: One needed to use Coppersulphate pentahydrate and amonium Nitrate to determin the heat-capacity of the calorimeter with a known spec. heat-capacity of amonium nitrate, 1.741 J/degree g. Thereafter, enthalpy of solution for monohydrate coppersulphate and anhydrous coppersulphate was found to establish the enthalpy of solution of anhydrous coppersulphate. The same mass of the content (water + substance) and the same number of moles of salt was used.

    The requirement: A nicely formated scientific report with qualities matching those of prof.standards. Calculations needs to contain necessary uncertainty calculations and so on. Two picture are attached and need to be included in the report. Report should be available within 12 hours, and the text of pictures and tables  need to be alterable.

    Exp. A: for determining the heat-capacity of the calorimeter using NH4NO3 and CUSO4 .5H2O(s) with room temp. of 21.0 deg Celcius. and the spec.heat capacity of amonium-nitrate is asumed to be

    Weights obtained for heat-capacity messurement
    Substance    Series 1    Series
    Filter paper(empty)(g)    0.8894    0.7793
    Filter paper +  CUSO4 .5H2O(s) (g)    8.0934    8.1116
    Filter paper after emptying cuso4 (g)    0.8932    0.7815
    Filter paper(empty)(g)    0.8884    0.7637
    Filter paper + NH4NO3(s) (g)    4.40810    4.4625
    Filer paper after emptying NH4NO3(s) (g)    0.8897    0.7632
    Water(mL)    100    100
    Temp change
    (ºC)    21.40
    to
    18.40    21.10
    to
    17.5
    Time interval (min)    8.23    8.29

    For entthalpy of solvation  investigation
    Substance    Series 1    Series 2
    Filter paper(empty)    0.8034(g)    0.9091
    Filter paper +  CUSO4 .1H2O(s)    5.6803(g)    5.6835
    Filter paper after emptying cuso4    0.9124(g)    0.9128
    Water(mL)    100 + 2.31    100 + 2.31
    Temp change
    (ºC)    21.10
    to
    23.30
    Time interval (min)    5.117

    For entthalpy of hydration  investigation
    Substance    Series 1    Series 2
    Filter paper(empty)    0.7871(g)    0.8072
    Filter paper +  CUSO4    5.1116(g)    5.1123
    Filter paper after emptying cuso4    0.9854(g)    0.9955
    Water(mL)    100 + 2.85    100 + 2.85
    Temp change
    (ºC)    2.301

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