Chemistry

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The heat released when one mole of water is formed from the elements is 1,198 kJ. An experiment was ... Started by najmarocks25	1 Replies 36 Views	Nov 5, 2023 by lhn821
The heat of solution of calcium chloride CaCl2 is 82.8 kJ/mol, and the combined heats of hydration ... Started by unreallynx	1 Replies 49 Views	Nov 5, 2023 by rika06@comcast.net
The heat of combustion of propane, C3H8, 2220 kJ/mol. The specific heat of copper is 0.385 J/gC. How ... Started by kaitlynndavis	1 Replies 71 Views	Nov 5, 2023 by Kevin5!
The enthalpy of combustion of acetylene C2H2 is described by C2H2(g) + (5/2)O2(g) 2CO2(g) + ... Started by gboileau	1 Replies 173 Views	Nov 5, 2023 by KeriJennin
The combustion of one mole of benzene, C6H6, in oxygen liberates 3268 kJ of heat. The products of ... Started by xman15.	1 Replies 670 Views	Nov 5, 2023 by brunoanthony
Given the following H values, H2(g) + O2(g) H2O(l) Hf = 285.8 kJ/mol H2O2(l) H2(g) + O2(g) ... Started by lrhoads	1 Replies 73 Views	Nov 5, 2023 by mllong
Find Hrxn for the reaction 2Na(s) + 2H2O(l) 2NaOH(aq) + 2H2(g). [Hf (NaOH(aq)) = 426.8 ... Started by najmarocks25	1 Replies 56 Views	Nov 5, 2023 by dude123
Calculate the heat released (kJ) in the reaction of 3.50 g of acetylene (C2H2) and excess hydrogen ... Started by nods	1 Replies 86 Views	Nov 5, 2023 by kaelamcrone
Calculate the heat released (kJ) in the reaction of 2.20 g of sulfur dioxide gas and excess oxygen ... Started by shivanipalawai@gmail.com	1 Replies 84 Views	Nov 5, 2023 by psuniv
Calculate the enthalpy of reaction for H2(g) + C2H4(g) C2H6(g). [Hf(C2H4(g)) = 52.3 kJ/mol; ... Started by heatherbabydoll1	1 Replies 76 Views	Nov 5, 2023 by StephaniaF
A 0.3423 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the ... Started by swande	1 Replies 81 Views	Nov 5, 2023 by marufp
A 0.3423 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the ... Started by Gabby	1 Replies 73 Views	Nov 5, 2023 by butterfly17
A 0.1946 g piece of magnesium metal is burned in a constant-volume calorimeter that has a heat ... Started by nanna	1 Replies 63 Views	Nov 5, 2023 by LynellDool
Which of the following processes is exothermic? Started by nanna	1 Replies 43 Views	Nov 5, 2023 by mgranuc
Which of the following processes is exothermic, given the following: N2(g) + 2 O2(g) N2O4(l) H = ... Started by dhsndn	1 Replies 51 Views	Nov 5, 2023 by RodrickHac
Which of the following processes is endothermic, given the following:S(s) + O2(g) SO2(g) H = 299 ... Started by Tb12162018	1 Replies 52 Views	Nov 5, 2023 by ElaneShive
Which of the following processes always results in an increase in the energy of a system? Started by Hunchojack2019!!	1 Replies 48 Views	Nov 5, 2023 by leilani49
Which of the following has a Hf = 0 kJ/mol? Started by Deej	1 Replies 43 Views	Nov 5, 2023 by Kevin5!
When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a ... Started by isam	1 Replies 40 Views	Nov 5, 2023 by sin
When 0.560 g of Na(s) reacts with excess F2(g) to form NaF(s), 13.8 kJ of heat is evolved at ... Started by kaitlynndavis	1 Replies 41 Views	Nov 5, 2023 by char00char
Three separate 3.5g blocks of Al, Cu, and Fe at 25 C each absorb 0.505 kJ of heat. Which block ... Started by joe3899	1 Replies 39 Views	Nov 5, 2023 by msgero
The total heat of hydration of 1.00 mol of gas phase Li+ ions and Cl ions is 865 kJ. The lattice ... Started by urmomsucks	1 Replies 71 Views	Nov 5, 2023 by bainer89
The reaction that represents the standard enthalpy of formation for sucrose (C12H22O11) is: Started by billyboy7272	1 Replies 160 Views	Nov 5, 2023 by jacquelyngibson
The reaction that represents the standard enthalpy of formation for benzene (C6H6) is: Started by ShannenConnor	1 Replies 346 Views	Nov 5, 2023 by studyforce.com
The reaction that represents the standard enthalpy of formation for acetone (CH3COCH3), a common ... Started by urmomsucks	1 Replies 209 Views	Nov 5, 2023 by msgero