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Dry ice sublimes at room temp. If 10.0 g of solid dry ice is placed in a 400 mL container, what will be the pressure in the container at 35 degrees C? If the .5 atm of O2 were added to the container, what would the total pressure be in the container? What is the % O2 in the container?
Calculate the enthalpy change in kJ when 19.1g of H2S is burned. 2H2S(g) + 3O2(g) --> 2SO2(g) + 2H20(g) Change in H= -1036kJ/mol
In an experiment that is performed you use 1-hexene and is reacted with H2SO4 with water as the solvent. The product formed is 2-hexanol, is this an example of 1,4 addition, or proceeds via a carbanion,
How much heat (kJ) is absorbed/ released? b. What is the change in internal energy (kJ) if the reaction results in a volume change of - 2.78 L?
Hydrogen cyanide is prepared from ammonia (NH3) and natural gas (CH4).2 NH3 (g) + 3 O2 (g) + 2 CH4 (g) → 2 HCN (g) + 6 H2O (g)
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash
Why might this fire rekindle days later as someone tries to remove the residue with water? What chemical process is involved here?
If the total mass of CO2 produced is 33.5 grams, what was the approximate mass of the methane in the original mixture?
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution? the dissociation constant Ka of HA is 5.66x10^-7
If you take a 10.0-mL portion of the stock solution and dilute it to a total volume of 0.230 L, what will be the concentration of the final solution?
The calculations are based on the principal components of meat being fat ( acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet ). ... information, the calculations correctly calculate what quantity, % fat or % fat-free..
Calculate the apparent molecular weight of the unknown hydrocarbon on the basis of the freezing-point depression experiment.
The freezing point of t-butanol is 25.50C and Kf is 9.1C kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 10.0g sample of t-butanol is 24.59C. How many grams of water are present in the sample?
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