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The combustion of one mole of propane, C3H8 (Molar mass 44 g mol-1) releases 2230 kJ. How much heat is released by 6.60 g of propane?
Consider a 53.5 g sample of H2O(g) at 117°C. What phase or phases are present when 134 kJ of energy is removed from this sample.
Calculate the de Broglie wavelength for each of the following.
Important information about Heat of Reaction, The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) --> 8CO2(g) + 10H2O(l) deltaHrxn= -5314kJ
How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
Using the reaction 2C6H6+15O2--->12CO2+6H2O, what volume of carbon dioxide will be produced when 128.0 grams of benzene react.
What mass of H2 forms if 12 grams of Zn reacts with 7 grams of HCl?
Compute the free energy change needed for transport of sufficient protons to make gastric juice of 1 litter at the temperature of 37 degree celsius hence expect above reaction will happen spontaneously?
If the formula for magnesium fluoride is MgF 2 and the formula for potassium chlorate is KClO 3 , then what is the formula for magnesium chlorate?
How many grams of dry NH4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a rm pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}
Describe the nature and characteristics of PCB's. Why are they of importance to an EH&S or FS professional who encounters them when coming upon an incident scene where they are present?
Compute the boiling point of this solution if Kf and Kb for H 2 O are given as 1.86°C/m and 0.512 °C/m , respectively.
A gas sample in a piston assembly expands, doing 588 kJ of work on its surroundings at the same time that 372 kJ heat is added to the gas.
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