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i saw someone posted a question similar to one im working on, and i was wondering where one of the numbers come from, the 273, where does that calculation come from? and is that the right way to solve for enthalpy, i thought you multiply the numbers by each other Heat = mass x T change x specific heat?
when 2.76g (0.0200 mol) g K2CO3 was mixed with 30.0 ml approximately 2M HCl, the temperature rose by 5.2 C
B) calculate the enthalpy change (^H) of this reaction per mole of potassium carbonate. Assume that the specific heat of the final mixture is 4.184 J/g C, and that its density is 1.00 g/mL Q= 5.2 + 273 = 278.2 H=? m= 2.76 2.76= moles of K2CO3 H= 278.2/2.76= 100.79 K J/Mole
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