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Name DATA SHEET Record all data values to the appropriate number of significant figures. Conductivity ( 2nd Reading G/I' 1st Reading Water Study G 269 ps/cm Tap Water Distilled Water G ICH PS/CM Sodium Chloride Study NaCl(s) G 7 PS/cm 2609 PS/cm 0.017 M NaCl(aq) G 0.033 M NaCl(aq) G 4666 PS/cm 8323 MS/cm 0.050 M NaCl(aq) 1 Ionic/Molecular Study G 378 YS/cm G 83 vs/cm I 9515 SCM I 1256115/cm 12831 YS/am 18 212 Sm 463 Ys/cm G 632 S/cm 1 41362 PS/cm 17267YSEM 1 19182 PS/cm 1 8562 YS/cm 9224 YS/cm 1 "G indicates that the data is collected as I indicates the data is collected individua 0.050 M C12H22O11(aq) 0.050 M CH₂OH(aq) 0.050 M KNO3(aq) 0.050 M CaCl(aq) 0.050 M Na2CO (aq) 0.050 M HNO3(aq) 0.050 M HC:HJOz(aq) 0.050 M NH:(aq) 0.050 M HCl(aq) 0.050 M NaOH(aq) Chemical Reactions 1: NaCl & KNO3 II: CaCl2 & Na2CO3 III: HCI & NaOH Acid/Base Study I G G

Experiment 8. Based upon the conductivities of the three mixtures prepared, relative to the conductivities of the reactants, determine whether or not a chemical reaction occurred, as follows: (a) Copy the relevant conductivity values from your data sheet and complete the table below: Conductivities (S/cm) Measured First Reactant Second Reactant Average of the Reactants NaCl KNO₂ Mixture I 4000 CaCl₂ Na CO₂ Mixture II HCI NaOH Mixture III (b) By comparing the average and measured conductivities, decide whether or not a reaction occurred in each mixture (see the background section of the experiment on the conductivity of mixtures, if necessary). If a reaction occurred, complete and balance the reaction equation below [including the appropriate phase (aq). (1), or (s) for each product]. Write N.R. if no reaction occurred. [For examples, see reactions (11)-(12) of the background section.] Hint: if needed, the solubility guidelines (given in section 4.5 of your lecture textbook) can help you determine the identity of the precipitate (solid) that formed in one of the reactions. 1. NaCl(aq) + KNO:(aq)→→→→→→→ II. CaCl₂(aq) + Na2CO3(aq) →→→ !II. HCl(aq) + NaOH(aq) →→→