honors chemistry final exam\n27.\na student mixes 50 ml of 1.0 m hcl and 50 ml of 1.0 m naoh in a coffee…

honors chemistry final exam\n27.\na student mixes 50 ml of 1.0 m hcl and 50 ml of 1.0 m naoh in a coffee - cup calorimeter and observes the change in temperature until the mixture reaches thermal equilibrium. the initial and final temperatures (°c) of the mixture are shown in the diagram above of the laboratory setup.\nbased on the results, what is the change in temperature reported with the correct number of significant figures?\n(a) 5.5 °c\n(b) 5.50 °c\n(c) 5.800 °c\n(d) 6 °c\n28.\nthe cooling curve above shows how the temperature of a sample varies with time as the sample goes through phase changes. the sample starts as a gas, and heat is removed at a constant rate. at which time does the sample contain the most liquid?
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