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3. A chemist uses a coffee-cup calorimeter to neutralize completely 75.0 mL of 6.67 mol/L HCI [4 Marks] with 75.0 mL of
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- 3 A Chemist Uses A Coffee Cup Calorimeter To Neutralize Completely 75 0 Ml Of 6 67 Mol L Hci 4 Marks With 75 0 Ml Of 1 (34.89 KiB) Viewed 47 times
3. A chemist uses a coffee-cup calorimeter to neutralize completely 75.0 mL of 6.67 mol/L HCI [4 Marks] with 75.0 mL of NaOH. The temperature change is 39.6 degrees C. Calculate the heat of neutralization, in kJ/mol of HCl. 4. Nitrogen in the air reacts with liquid water, using sunlight as a catalyst, to produce ammonia gas (NH3) and oxygen gas. 2N2(g) + 6H₂O(1)→ 4NH3(g) + 302(g) Determine the enthalpy change of the reaction, using a balanced chemical equation [3 Marks]