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| From:  Albert1145 (Original Message) | Sent: 8/31/2008 8:44 AM |
Hi Steve, I'm not sure how to go about questions involving neutralization and heat. Could you help me?
The heat of neutralization of HCl by NaOH is given below:
HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l) Δ H= -56.2 kJ/mol
What is the value of qp (in kJ) when 125 mL of 1.750 M HCl is mixed with 195.9 mL of 0.667 M NaOH?
What is the value of qp (kJ) when 7.1 g of aluminium react according to the equation:
2Al + Fe2O3 -> Al2O3 + 2Fe Δ Horxn= -849 kJ
Ethanol fuel (C2H5OH) burns according to the equation below.
What is the value of qp (kJ) when 21.8 g of ethanol is burned?
C2H5OH(l) + 3O2(g) -> 2CO2(g) + 3H2O(l) Δ H= -1367 kJ |
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