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Liquid octane, C8H18, (density = 0.702 g/mL) can be used as a fuel. What is ?H in MJ for the combustion of 1.99 L of octane producing CO2(g) and H2O? The heat of combustion of octane is -5.45 x 103 kJ/mol.
A 8.0 L sample at 25 °C and 1.00 atm of pressure contains 0.5 moles of a gas. If an additional 0.75 moles of gas at the same pressure and temperature are added, what is the final total volume of the gas?
What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Kb of hypochlorous acid is 2.63 x 10 ^-7. ( Use ICE and please show work)
A maximum of 1.89 mg of AgCl will dissolve in 1.00 L of solution at 25.0 C. A maximum of 5.26 mg of AgCl will dissolve in 1.00 L of solution at 50.0 C. Use this information to calculate standard enthalpy change and standard free energy change for ..
In an experiment, 2.50 g salicycylic acid was reacted with excess acetic anhydride to synthesize aspirin, as shown below.
What is the boiling point of a solution of 8.69 g of the electrolyte sodium acetate, NaCH3COO, dissolved in 15.00 g of water?
Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the concentration of SO2Cl2 is 45.5 μg/mL.
It is assumed that the relative standarddeviation of the method is sr ? s = 4 ppt forcarbon and 6 ppt for hydrogen. The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there anyindication of systematic error i..
The neutrons interact with with 6Li to produce tritons (nuclei of 3H), which, in turn, interact with the oxygen to produce 18F. What are the two nuclear reactions?
The equation below describes the combustion of propane. C3H8(g) + 5O2(g) ? 3CO2(g) + 4H2O (l) a.In the presence of excess oxygen, how many g of CO2 are formed if 322 g of propane are consumed
The reactant concentration in a zero-order reaction was 8.00×10-2 after 100 and 4.00×10-2 after 370 .
You have 47.2 mL of a solution of copper(II) chloride (CuCl2?). You need to determine the concentration of Cu2+ in the solution gravimetrically.
Calculate the freezing point of a 2.00 molal solution of the nonelectrolyte glucose. The freezing point constant for water is 1.86 °C/molal.
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