A combination of 1.45 g Zn with 25.0 mL of 1.5 M HCI, initially at 18C,...

 

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A combination of 1.45 g Zn with 25.0 mL of 1.5 M HCI, initially at 18°C, results in an exothermic reaction. What volume of hydrogen gas can be collected over water at a total pressure of 755 mmHg? [Hint: look up vapor pressure of water at the final temperature the reaction reaches.] Zn (s) + 2HCI (aq) → H2 (g) + ZnCl, (aq), AH = -153.9 kJ A combination of 1.45 g Zn with 25.0 mL of 1.5 M HCI, initially at 18°C, results in an exothermic reaction. What volume of hydrogen gas can be collected over water at a total pressure of 755 mmHg? [Hint: look up vapor pressure of water at the final temperature the reaction reaches.] Zn (s) + 2HCI (aq) → H2 (g) + ZnCl, (aq), AH = -153.9 kJ

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