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please help with these chemistry problems! and show work i need to learn how...

please help with these chemistry problems! and show work i need to learn how... - Chemistry Forum

please help with these chemistry problems! and show work i need to learn how... - Chemistry Forum. Discuss chemical reactions, chemistry.


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Old 06-21-2009, 07:17 AM
Pipette Filler
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Default please help with these chemistry problems! and show work i need to learn how...



...to work them.? 1.Consider the reaction, 2 C4H10(g) + 13 O2(g) => 8 CO2(g) + 10 H2O(l), for which ?H = -5760 kJ. If 4,849 kJ of heat is produced, how many grams of H2O will also result?

2. When 1 mol of CS2(l) forms from its elements at 1 atm and 25C, 89.7 kJ is absorbed, and it takes 27.7 kJ to vaporize 1 mol of the liquid. How much heat is absorbed when 1 mol of CS2(g) forms from its elements at these conditions?
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