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A mixture of butene and butane burn in the air to give CO2 and H2O.suppose u burn 2.86g of the mixture and obtain 8.80g of CO2 and 4.14g of H2O.What is the mass percentages of butane and butene in the mixture?
A piece of copper with a mass of 218 grams has a heat capacity of 83.9 J/degrees C. What is the specific heat of copper.
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
100 mol/h of n-octane is burned in 80.0% excess air to 95.0% conversion. What is the molar flow rate of N2 in the stack gas if The n-octane is converted to a mixture carbon monoxide, carbon dioxide, and water, where the ratio of CO2 to CO is 4:1?
Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.
The rate of disappearance of HBr in the gas phase reaction is 0.103 Ms-1 at 150 deg Celsius. what is the rate of reaction.
Determine the concentration of H+ ions in a solution of HCl that was prepared b diluting 50.0 mL of concentrated (11.6 M) Hydrochloric acid to a final volume of 500mL?
Define internal energy and enthalpy. What is the difference between the two? List the following gases in order of increasing root-mean-square speed, all at the same temperature: H2, He, O2, Ne
Using a sample of 30.0 mL of Kr(g), is at 25°C and 756 mmHg. Calculate the new volume if the temperature is decreased to -125°C and pressure is decreased to 325 mmHg .
An electron in an excited state of a hydrogen atom emits two photons in succession, the first at 1817 nm and the second at 97.20 nm, to return to the ground state (n=1).
Lead thiocyanate, rm Pb(SCN)_2, has a K_sp value of 2.00 times 10^{-5}.Calculate the molar solubility of lead thiocyanate in 1.00 it M rm KSCN.
What is the concentration of g salt per 100 g water of a saturated solution in which 3.82 g of salt are dissolved in 9.54 g of water?
The water level in a graduated cylinder initially at 220 rises to 279 after a piece of lead is submerged. What is the mass in grams of the lead.
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