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A 1.5g iron nail is heated to 95.0 *C as well as placed into a beaker of water. Compute the heat gained by the water if the final equilibrium temperature is 57.8 *C. The specific heat capacity of iron = 0.449 J/g*C of water= 4.18 J/g*C.
Select the answer from the following but show work.
a.) 6.0 Jb.) 25 Jc.) -25 Jd.) 39 Je.) -39 J
at a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
a student in lab has 3.00 g of pure n2 in 0.541 g pure h2. the reaction happens following this equation n2g 3h2g rarr
A sample containing 2.00 mol of graphite reacts completely with a limited quantity of oxygen at 25 degrees C and 1.0 atm pressure, producing 481 kJ of heat and a mixture of CO and CO2. Calculate the masses of CO and CO2 produced.
While 50 g of acetylene is allowed to react with excess oxygen what is the percentage yield of carbon dioxide
Why is the first step in an electrophilic aromatic bromination reaction so much more endothermic than the first step in an electrophilic addition to an alkene
The critical constants of ethane are Pc= 48.20 atm, Vc= 148 cm3mol-1, and Tc= 305.4 K. Calculate the van der Waals parameters of the gas and estimate the radius of the molecules.
a water tower supplies water through the plumbing in a house. a 2.54-cm-diameter faucet in the house can fill a
If we react 116 molecules of TiCl4 with water according to the equation TiCl4 + 2 H2O -> TiO2 + 4 HCl how many molecules of HCl will we form?
Explain if this energy were used to vaporize water at 100, Define how many grams of water could be vaporized. The heat of vaporization of water at 100 is 40.7. Presume that the density of water is 1.0 g/mL
As a reaction progresses backwards toward equilibrium K is the highest value Q attains. e) A reaction with no products present has an infinite Q value.
Although all bond lengths in benzene are identical, that is not always true for all aromatic compounds. In napthalene, for instance, the C1-C2 bond is shorter than the C2-C3 bond. Explain, using reasonance theory
note the lewis structure h3o. highly electronegative atos often have a partial negative charge on them. negative formal
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