A student dissolves 11.2 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup. He then observes th

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A Student Dissolves 11 2 G Of Sodium Chloride Nacl In 250 G Of Water In A Well Insulated Open Cup He Then Observes Th 1 (94.79 KiB) Viewed 106 times

A student dissolves 11.2 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup. He then observes the temperature of the water fall from g 22.0 °C to 21.3°C over the course of 8.5 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaCl(s) Nat(aq) + CI+ (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. O exothermic По Is this reaction exothermic, endothermic, or neither? O endothermic Х O neither If you said reaction was ermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. [] kJ kJ Calculate the reaction enthalpy per mole of ΔΗ. NaCl rxn mol