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A compound contains merely carbon, hydrogen and oxygen. Combustion of 0.01068g of the compound yields 0.01601 g of CO2 as well as 0.00437 g of H2O. The molar mass of the compound is 176.1 g. Explain what are the empirical and molecular formulas of the compound?
How many moles of oxygen are required for the complete combustion of 4.0 moles of decane to give CO2 and H2O
Coal as fired, contains 2.5% moisture. On the dry basis the coal analysis is as follows: carbon -80%, hydrogen- 6%, oxygen-8%, ash- 6%. The flue gas analysis.
what is the coefficient for carbon dioxide when the following equation showing the combustion of isopropyl alcohol
Hydrochloric acid can dissolve calcium carbonate. Predict the balanced chemical reaction. How much HCl is required to dissolve 24.2g of calcium carbonate. The density of HCl is 1.149 g/Ml.
The following five beakers, each containing a solution of sodium chloride (rm NaCl, also known as table salt), were found on a lab shelf:
A certain reaction has an enthalpy of change in H = 54 kJ and an activation energy of Ea=81 kJ. What is the activation energy of the reverse reaction
Nicotine is responsible for the addictive properties of tobacco. Assume Kb1= 1.05 x 10^-6 and Kb2= 1.32 x 10^-11. Determine the pH of a 0.00120 M solution of nicotine.
BrO2- depicts the molecule by placing atoms on the grid and connecting them with bonds. Comprise all lone pairs of electrons. Demonstrate the formal charges of all atoms in the correct structure.
what is the maximum height achieved if a 0.500 kg mass is thrown straight upward with an initial speed of 55 ms-1?
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.8 mg sample of the material in sufficient water to make 35.4mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
The heat energy required to melt 1.00 g of ice at 0 degrees C is 333J. If one ice cube has a mass of 62.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of ice cubes to form liquid water at 0 degrees C
the decomposition of potassium chlorate kclo3 is used as a source of oxygen in the laboratory. how much potassium
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