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- Use the molar DHf° under the formulas to calculate DH°rxn for the equations as balanced: 1. 2B2H6(g) + 3CO2(g) --> 2B2O3(s) + 3CH4(g) ΔH°rxn = _______ kJ ΔH°f = +36 –394 –1274 –75 kJ/mol exo ? endo_thermic 2. 2P2O5 + 2CaC2 -->P4 + 2CaCO3 + 2CO2 ΔH°rxn = _______ kJ ΔH°f = –1505 –59 ___ –1207 –394 kJ/mol exo ? endo_thermic 3. 2Na2CrO4(s) + 10HCl(g) --> 4NaCl(s) + 3Cl2(g) + Cr2O3(s) + 5H2O(l) ΔH°f = –1342 –92 –411 ___ –1140 –286 kJ/mol ΔH°rxn = _______ kJ exo ? endo_thermicMagnesium +Acetic Acid --> C2HG5+ O2 ---> Iron (III) carbonate -->Liquid water can go from 25ºC and 1atm to 35ºC and 1atm in a process for which q < 0. Select one: True False
- Liquid n-Hexane + oxygen react to to form carbon dioxide + water vapor. delta Hr= __? Kj Liquid sodium sulfate reacts with carbon monoxide(g) to form liquid sodium sulfide and carbon dioxide (g). delta Hr =__? KJSum of coefficients C7H8 + O2 --> CO2 + H2O after balancingPlease don't provide handwritten solution ...... The density of concentrated sulfuric acid is 1830k(g)/(m^(3)). You obtained 500.0cg of concentrated sulfuric acid. Calculate the volume of the sample in mL. Use the provided Measurement Information. Type only correctly rounded number.
- A student obtains the following data by following an experimental procedure to this one. Based on this data, what is the value of R (in L.atm/mol/K) that would be calculated? Report the result to four significant figures. Use 273.15 K for the temperature conversion. Pressure of dry H2 = 742.0 mm Hg Temperature = 22.00 degrees C Mass of Mg used = 0.03860 g Volume of H2 = 44.10 ET units Conversion factor = 0.8119 mL/ET UnitExplain step by step Q 9 by showing me the calculation pleaseYou can use this as your reference: https://www.youtube.com/watch?v=2J2t5FRnMtM
- 93.6g to ng and 93.6g to tons with the set up in the image possible show how to get the answer pleaseA pipet is used to transfer 3.00 mL of a 2.00 M stock solution in flask “S” to a 25.00-mL volumetric flask “A,” which is then diluted with DI H2O to the calibration mark. The solution is thoroughly mixed. Next, 3.00 mL of the solution in volumetric flask “A” is transferred by pipet to a 50.00-mL volumetric flask “B” and then diluted with DI H2O to the calibration mark. Calculate the molarity of the solution in volumetric flask “B.”discuss some ways in which the concentration of asolution can be expressed, and the kinds of informationwe can derive from the different units of measure.