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What are q and w (in kJ) for the reaction of 25.0 g of Na(s) and 53.0 g of Cl2(g) to produce NaCl(s) at 1 atm and 298K?q = ________ kJ w = ________ kJThe heat of combustion of liquid toluene (C7H8) is -3910.3 kJ/mol at 1 atm and 298 K.a) What is the energy of combustion at 1 atm and 298 K?Ecomb = _______ kJ/molb) What is the heat of formation of toluene?Hf = ________ kJ/mol
Ever since volume is proportional to the number of moles present mole fractions of gases can be expressed as ratios of volumes at the same temperature and pressure. Compute the concentration of each gas in moles per liter at 0°C.
calculate the lattic parameter and the atomic radius from this information. (b) What is the planar density of atoms in the (110) plane (and sketch how they are arranged).
Explain the reaction produces 33.8877 g of CO2 and 8.82784 g of H2O. Based on these results as well as the molar masses of H (1.008 g), C (12.01 g) and O (16.00 g), how many hydrogen atoms are in each formula unit of the acid, CxHyO2
A misture of .25 mol N2 an d .60 mol H2 are placed in a 1.0 L evacuated flask at 300 degrees Celcius and it is then allowed to reach equilibrium. If the equilibrium misture contains .45 mol H2, what is the equilibrium constant for reaction
Find the mass of urea (CH4N2O) needed to prepare 50.8 g of a solution in water in which the mole fraction of urea is 7.55×10?2.
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
Explain why alcl3 has a molar heat capacity that is approximately 4 times the molar heat capacity of a metallic crystal.
At 25 degree C the heat of fusion of Al is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of Al at 25 degree C.
Hypothetical metal M has a molecular weight 171 g/mol and crystallizes in a body-centered cubic array of atoms in which the length of the unit cell's edge is 547.3 pm
If you didn't have a computer or data system available, how would you measure the area of the peak. After all, someone's DUI may hinge on this measurement, and you may have to defend your calculation in court
Problem- Were the advertising claims of low alkalinity shampoo verified when compared with ordinary shampoo? Explain.
A reaction has a rate consant of 1.23/mol*s at 433 Celcius and 24/mol*s at 533celcius.
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