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CHEMISTRY Aqueous Solutions and Solution Stoichiometry

CHEMISTRY Aqueous Solutions and Solution Stoichiometry -...

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William Pittman SID: 817000368 9/20/2007 Aqueous Solutions and Solution Stoichiometry Summary – In this experiment, we examined the behavior of strong, weak, and non-electrolytes by measuring the conductivity of different solutions. This is evident because the different solutions used either disassociate completely, partially, or not at all, forming strong conductors, weak conductors, and non-conductors respectively. In the part B of the experiment, we added small amounts of H 2 SO 4 to a tall form beaker filled with Ba(OH) 2 . By observing the conductivity level present at each addition of H 2 SO 4 we were able to find the equivalence point, this allowed us under further calculation to find the concentration of Ba(OH) 2 . Results Part A – Measuring conductivity of various solutions Solution NaCl CaCl 2 CH 3 CO OH HCl CH 3 O H H 2 O (tap) H 2 O (dist) Conductivity (µS/cm) 783 372 76 1690 38 115 28 Classification Strong Wea Weak Stron Non Weak Non
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k g Part B – Using conductivity to find an equivalence point Data table and graph for part B attached to back.
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