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5.3: Enthalpy of Formation #Balancedcquation for_the reaction: CuSOs1 ANHy Metal Cation Reactant [CuNHJSO4ew Complexing Reactant Identification CuSo4 N 05M 60M Mola...

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5.3: Enthalpy of Formation #Balancedcquation for_the reaction: CuSOs1 ANHy Metal Cation Reactant [CuNHJSO4ew Complexing Reactant Identification CuSo4 N 05M 60M Molanty Volume 250mL 250mL 0.012Smol 0.1Smol Moles ZLL'C 200*C Ta Avcrage T_t 20.5 *C 260.%C Fn-lnmduh AT 5.58C Mass of thc solution (Mass teaa Densitynn mhlee Volumcr Eiturt) Density of the rcaction mixture is [.Ol glmL 206.25 ] 162.H J 1368.36 ] Moles Moles tura krmn AHna gvmoles cunla *al (Jlmol) 50.5 g Qutn

5.3: Enthalpy of Formation #Balancedcquation for_the reaction: CuSOs1 ANHy Metal Cation Reactant [CuNHJSO4ew Complexing Reactant Identification CuSo4 N 05M 60M Molanty Volume 250mL 250mL 0.012Smol 0.1Smol Moles ZLL'C 200*C Ta Avcrage T_t 20.5 *C 260.%C Fn-lnmduh AT 5.58C Mass of thc solution (Mass teaa Densitynn mhlee Volumcr Eiturt) Density of the rcaction mixture is [.Ol glmL 206.25 ] 162.H J 1368.36 ] Moles Moles tura krmn AHna gvmoles cunla *al (Jlmol) 50.5 g Qutn



Answers

You mix solid copper (II) sulfate, CuSO_ $(s),$ with a small amount of water, $\mathrm{H}_{2} \mathrm{O}(l)$ in a beaker. Hydrated copper (II) sulfate, $\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}(s)$ is produced. A thermometer inside the beaker indicates that the temperature has increased from $19^{\circ} \mathrm{C}$ to $48^{\circ} \mathrm{C} .$
$$
\mathrm{CuSO}_{4}(s)+5 \mathrm{H}_{2} \mathrm{O}(l) \longrightarrow \mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}(s)
$$
a. List all the substances that are part of the system.
b. List at least four things that are part of the surroundings.
c. Which is at a lower temperature: $\mathrm{CuSO}_{4}(s)$ or CuSO $_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}(s) ?$ Explain your thinking.
d. What will you feel if you touch the beaker?
e. Is the process endothermic or exothermic? Explain your thinking.
f. What evidence do you have that heat is transferred to the surroundings from the products of the reaction?


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