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- Calcium ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) Ca (s) 0 0 41.4 Ca (g) 178.2 144.3 158.9 Ca2+ (g) 1925.9 CaC2 (s) -59.8 -64.9 70.0 CaCO3 (s, calcite) -1206.9 -1128.8 92.9 CaCl2 (s) -795.8 -748.1 104.6 CaF2 (s) -1219.6 -1167.3 68.9 CaH2 (s) -186.2 -147.2 42.0 CaO (s) -635.1 -604.0 39.8 CaS (s) -482.4 -477.4 56.5 Ca(OH)2 (s) -986.1 -898.5 83.4 Ca(OH)2 (aq) -1002.8 -868.1 -74.5 Ca3(PO4)2 (s) -4126.0 -3890.0 241.0 CaSO4 (s) -1434.1 -1321.8 106.7 CaSiO3 (s) -1630.0 -1550.0 84.0 Carbon ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) C (s, graphite) 0 0 5.7 C (s, diamond) 1.9 2.9 2.4 C (g) 716.7 671.3 158.1 CCl4 (l) -135.4 -65.2 216.4 CCl4 (g) -102.9 -60.6 309.9 CHCl3 (l) -134.5 -73.7 201.7 CHCl3 (g) -103.1 -70.3 295.7 CH4 (g) -74.8 -50.7 186.3 CH3OH (g)…Please help with calulation of theoretical yield of the following: Na2CO3 + Ca(NO3)2.4H2O ---> CaCo3 + 2NaNo3 + 4H2O 2.03g Na2CO3 2.06g Ca(NO3)2.4H2OEl poder de rotación específico de la sacarosa a 20 °C es [alfa]D20 = +66,53 grados/(dm g mL-1). ¿Cuál es su poder de rotación molar, expresado en grados/(dm mol L-1)? (Peso molecular de la sacarosa: 342,3). 1). 5.14 2). 22.77 3). 194.4 4). 22773
- Recall that the formula for ΔHrxn = [(-Ccal)(moles of limiting reactant)/(ΔT)]If the actual concentration of the sodium hydroxide used in the calibration part of the experiment was lower than the stated value, will the value of Ccal increase, decrease, or remain the same? Please explain. How about if the actual concentration of the sodium hydroxide used in the calibration part of the experiment was lower than the stated value. However, the NaOH solution used in the determination of ΔHrxn was of the correct concentration. Will the magnitue of ΔHrxn increase, decrease, or remain the same? Please explain.3'-Methylphthalanilic acid is used commercially as a “fruit set” to prevent premature drop of apples, pears, cherries, and peaches from the tree. It is 70.58% carbon, 5.13% hydrogen, 5.49% nitrogen, and 18.80% oxygen. If eaten, the fruit set reacts with water in the body to produce an innocuous product, which contains carbon, hydrogen, and oxygen only, and m-toluidine (NH2C6H4CH3), which causes anemia and kidney damage. Compute the mass of the fruit set that would produce 5.23 g m-toluidine.After heating 2.000 g of MgSO4.7H2O to constant mass, the remaining residue in the crucible weighs 0.978 g. Using the data above , calculate the mass of water lost. After heating 2.000 g of MgSO4.7H2O to constant mass, the remaining residue in the crucible weighs 0.978 g. Using the data above , calculate the mass percent of water in the hydrate. 16 AND 17 PLEASE
- Na2SO3Na2SO3 reacts with HClO4HClO4 according to the reaction Na2SO3(aq)+2HClO4(aq)⟶2NaClO4(aq)+H2O(l)+SO2(g)Na2SO3(aq)+2HClO4(aq)⟶2NaClO4(aq)+H2O(l)+SO2(g) You wish to provide a 50% excess of 5.955.95 wt% aqueous HClO4HClO4 to react with 30.030.0 mL of 0.07740.0774 M Na2SO3Na2SO3. Calculate the mass of the 5.955.95 wt% aqueous HClO4HClO4 solution required to provide the 50% excess. mass:To my understanding that you are supposed to answer 3 questions per asking . Write clear and mine form as questions thank you(AH is all in kJ mol-1) AH 2 Na = 0 AH 2 H20 = -285.8 AH 2 NaOH = -470.1 AH H2 = 0
- Mass of original mixture: 0.280g Mass of naphthalene recovered: 0.160 g Mass of 3-nitroaniline recovered: 0.015 g Mass of benzoic acid recovered: 0.135 g 1. a) calculate % by mass of naphthalene, 3-nitroaniline and benzoic acid in original sample 1. b) calculate total mass of three recovered components (g) 1. c) calculate total percent recovery (%)In 6.75g of distillate >130C. After performing all necessary GC calculations, it is determined that this sample is 75.9% isopentyl acetate. What qas the actual mass(g) of isopentyl acetate that was actually in this sample? Answer to 2 decimal placesAleks data for AgBrO3 is 5.38 x 10^-5