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A hydrocarbon is burned in an excess of oxygen to give 1.32g of carbon dioxide and 0.72g of water. What is the empirical formula of hydrocarbon?
Determine how much Ammonia would be formed if 187 grams of calcium carbonate CaCO 3 are formed?
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+.
What is the pH of a buffer solution that is 0.10M methylamine and 0.10Mmethylammonium salt?what is the pH if 12ml of 0.20Mhcl
Use the dipole moments of HF and HCl ( HCl= 1.08 D, HF= 1.82 D) together with the percent ionic character of each bond (HCl 20% ionic, HCl 45% ionic) to estimate the bond length in each molecule.
At 30 degrees Celsius, the titration of a 5.0 mL sample of succinic acid required 29.56 ml of .950M NaOH. Find the concentration of succinic acid in moles/liter
A proton in a linear accelerator has a de Broglie wavelength of 138 pm. what is the speed of the proton?
There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature. Express your answer in J. Heat capacity for Helium = 20.8 J/(mol K) Molecular weight for Helium = ..
If you fill the larger tank with oxygen to a pressure of 135 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
write the Nernst equation for the reduction of Fe2O3 (s) according to the reaction listed below, write the equation in terms of pH.
As the liquid vaporizes the plunger is pushed out. At equilibrium, the plunger reads 6.51 mL of gas. Atmospheric pressure is 740. mmHg. What is the approximate molar mass of the compound (in g/mol)?
Which solute would provide the shaper end point in a titration with 0.1 M HCl: use ka or kb values to answer this question. (a) 0.10 M NaOCl or 0.1 M hydroxylamine (b) 0.10 M NH3 or 0.10 M sodium phenolate (c) 0.1 M methylamine or 0.10 M hydroxyla..
the enthalpy of formation of compound x is -612 kjmol and the sole product of its combustion has a enthalpy of
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