Volume of 2.00 M HC1 Volume of 2.00 M NaOH Volume of solution Tinitial T AT (T final final - Tinitial) fic heat capacity of NaCl solution 2x 25m1 25ml 50 ml 12 31.30 10.3°C Trial 2 3.87 J/g °C 25ml 21°C 2C 21°C 31.3°C 10.30 25m) 50 ml 3.87 J/g °C
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- What is AG (in kJ) for 2 SO2(g) + O2(g) 2 SO3(g) at 700 K, under standard conditions of 1 bar partial pressure for all gases, given that K = 3.0x104 at 700 K? %3D -36 0.0 O +60. -60. +36Table 4. Enthalpy of solution of salts data and calculations NHẠNO3 MgSO4 [1] Mass of salt (g) 1.991 2.000 [2] Volume of DI water (mL) 49.9 49.8 Mass of DI water (g) [3] Temperature of DI water (°C) 25.0 24.4 [4] Temperature of mixture after dissolution (°C) 21.7 32.5 Temperature difference (°C) [5] Total mass in reaction (g) [6] Enthalpy of solution AHsolution (cal/mol)[References] |Substance and State AH£° (kJ/mol) | Саз (РОд)2(8) CaSO4 (s) CH4 (9) HCN(g) HCI(g) H2O(g) NH3 (g) NHẠ CI(s) O2 (9) H3PO4 (1) H2SO4 (1) -4126 -1433 -75 135.1 -92 -242 -46 -314 -1267 -814 а. (g) + (g) + (g) + (g) N ΔΗ'- kJ b. Сaз (РО,), (8) + зн;SO4(1) —— зСaSO, (s) + 2H3PОД (1) ΔΗ' kJ с. NH3 (9) + HCI(9) — NH4 CI(s) ΔΗ' kJ Previous
- Is the following chemical reaction exothermic or endothermic? 31 (aq) + H3AS04(aq) + 2H* (aq) 13 (aq) + H3ASO3(aq) + H2O() AH°F(kJ/mole) S° (J/mole*K) Substance or ion -55.19 180.7 I (aq) -345.69 212.34 H3ASO4(aq) -11.23 11.09 H* (aq) 69.77 -89.6 13 (aq) H3ASO3(aq) -301.27 199.78 -285.8 69.95 H20 (1) endothermic then exothermic All I know is the reaction is cold to the touchDenise combines 0.2 g of Mg metal with HCl and gets a final V of 234 mL which completely reacts (Mg + HCl = MgCl2 + H2). Tsolution changes from 23.8 degrees C to 33 degrees C. The solution's density is 1 g/mL and Cs,H2O = 4.18 J/g degrees C. What is qrxn? Given the following: Cgr + O2 = CO2 ΔH = -0.394 J Cdi + O2 = CO2 ΔH = -0.396 J What is the ΔH of the conversion of graphite (Cgr) to diamond (Cdi)?(Expert Answer) A 90.0 g X D (Expert Answer] A 90.0 g x 101 Chem101 B When 0.0901 mol of an u X 01edu.co Question 8 of 8 0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's temperature decreases by 6.61°C. Calculate AH, in kJ/mol, for the dissolution of the unknown solid. (The specific heat of the solution is 4.184 J/g.°C and the density of the solution is 1.02 g/mL).
- S_engine.html?ClassID=10877573352# Calculate the enthalpy of vaporization for the phase change from liquid water to water vapor. H20(1) – H2O(g) Compound AH°, (kJ/mol) H,O(1) H,O(g) -286 -242 AHvap = [ ? ] kJ/mol Enter either a + or sign and the magnitude. EnterQuestion 25 of 35 Submit 12(9) Substance AHť (kJ/mol) K (s) H2O (1) -285.8 КОН (ад) -482.4 H2 (g) kJ/mol 1 4 C 7 +/- x 10 0 Tap here or pull up for additional resources LO 00+2 -3 a. solid calcium nitride plus heat Ca Na 3 Ca +2N b. solid lead (IV) carbonate plus heat рысозда 1→→ Pb 0₂ + 2003 c. solid chromium (III) sulfate hexahydrate plus heat d. sodium metal plus nitrogen gas
- us engine.html?ClassID=1087757335# Calculate the enthalpy of vaporization for the phase change from gaseous methanol to liquid methanol. CH3OH(g) → CH3OH(I) Compound AH°, (kJ/mol) CH,OH(I) CH,OH(g) -239 -201 AHvap = [ ? ] kJ/mol Enter either a + or - sign and the magnitude. EnterFor the reaction 2SO₂(g) + O₂(g) - AG=-137 kJ and AS°= -187.9 J/K at 321 K and 1 atm. This reaction is favored under standard conditions at 321 K. The standard enthalpy change for the reaction of 1.56 moles of SO₂ (g) at this temperature would be 80 FS Submit Answer $ R F I V % 5 Show Hint Retry Entire Group 9 more group attempts remaining T Use the References to access important values if needed for this question. G B →2SO3(g) Cengage Learning Cengage Technical Support 6 MacBook Air Y H & 7 N C * 00 8 M I K ( O 1 O P A Previous { I kJ. Next> Save and ExitQuestion 4 of 8 Submit How many kJ are in 6835 cal? kJ 1 2 3 4 6. C 7 8 +/- x 10 0 Tap here or pull up for additional resources