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an unknown hydrocarbon is subjected to elemental analysis. The results of this test demonstrate that the compound is 83.24% C and 16.76% H with a molar mass of 72 g/mole. What is the molecular formula for this compound?
Calculate the volume in mL of 1,00g of water at each temperature and then calculate the percentage increase in volume that occurs as water is heated from 4.0 degrees Celsius to 60.0 degrees Celsius.
An equilibrium mixture for the reaction above contains [H2] = 1.00 M, [N2] = 1.50 M, and [NH3] = 2.00 M. What is the value of the equilibrium constant, Kc, for the reaction?
A cylinder equipped with a piston expands against an external pressure of 1.58 atm. If the initial volume is 0.485 L
If the measured gas pressure in a collection flask during a gas-forming reaction was determined to be 1.44 atm, and the atmospheric pressure that day was measured as 0.95 atm.
Calculate the number of moles of O2 required to react with phosphorus to produce 5.50 g of P4O6. (Molecular mass P4O6 = 219.9 g/mol.)
The equilibrium constant is 100. Calculate the concentrations of O2 present at equilibrium
Acetic acid flowing at the rate of 20kg pe min. Product p is of combination leaves at rate of 100 kg per minute. Determine the composition of p?
Hydrogen peroxide decomposes into water and oxygen in a first order process. At 20 degrees C, the half life for the reaction is 10.9 hours.
Calculate the number of moles of H2O that will be produced by the reaction of .530 moles of solid Al(OH)3 with excess aqueous HClO3
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
A 25.0 mL sample of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalence point. (Kb for aniline = 4.0 x 10-10)
Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.(a) 0.0214 mol of sodium phosphate in 10.5 mL of solutionchemical concentration Mcation concentration Manion concentration
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