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The energy needed to melt the 1.00 g of ice at 0 oC is 333J. What quantity of energy is needed to melt a tray of ice cubes to form liquid water to 0 oC if one ice cube has a mass of 62.0 g a
Determine the numbers of tons of N2O4 oxidizer were needed to react with it if the lunar lender on the Apollo moon missions used 4.0 tons of dimethyl hydrazine, (CH3)2NNH2, as fuel? (The reaction prod
Estimate the value of Q and ΔG if you begin with a concentration of a concentration of 1.40M NO2 and 0.300M N2O4.
When dissolving the H2SO4 in water you should use care because the process is highly exothermic. To calculate the enthalpy change, 5.2 g H2SO4 (l) was added to 135 g of water in a coffee-cup
Estimate both the trans- and cis- isomers of the 1-bromo-2-methylcyclohexane. Provide the product when each of the isomers reacts with the sodium meth oxide at an elevated temperature.
Determine the numbers of hours will it take to form the 46.0 kg of Al metal by the reduction of Al3+ in an electrolytic cell using a current of 347 amps?
Determine the numbers of unpaired electrons are in the d-orbital splitting diagram for an octahedral complex ion of the Fe2+ in the low spin case
Calculate the crystal field splitting energy for this ion in the kJ/mol when a chemist claims to have found a complex ion where the most intensely absorbed light is 337.0 nm.
How can determine the numbers of mg of C,H,O is present in the original sample Y. The combination of 20.63 mg of compound Y, which is having only the C, H, O, with excess oxygen gave 11.85 mg
To form the aluminum sulfide the elemental aluminum reacts with the elemental sulfur. When this compound is mixed with the water, a white precipitate and a foul-smelling gas are produced.
A student added 5.38g of Al(OH)3 to a beaker which is having the 250.0 ml of a 1.00M HCl solution , stirred it, and observed that the solid dissolved totally.
Determine the volume of CO2 at 16.5°C and 746 mm Hg pressure obtained by treating 32.6 g of Na2CO3 with an excess of hydrochloric acid.
Identify the trans and cis stereoisomer. Illustrate all the chair conformations of 2-tert-butylcyclohexanol. Circle the least stable conformation and explain your choice in detail.
Discuss under what conditions an anti-Markovnikov-product will occur. React 2-pentene with HBr under the conditions to produce the anti-Markovnikov product.
Determine what volumes of a 0.0245M solution of potassium permanganate are needed to titrate 0.461g of sample that is 91.6% sodium oxalate?
Calculate the new partial pressure of each reactant in the vessel after equilibrium is reestablished. Suppose the volume of the container is suddenly reduced to one half via a piston mechanism.
Would the average kinetic energy still be the same? What if the pressures were different among the two but still at the same temp?
Calculate the moles of glucose present in this solution when a solution of glucose C6H12O6 dissolved in the 150g of ethanol has an ethanol vapor pressure of 200 torr at 340K.
If the initial temperature of the water was 6 degrees C and the water was converted to steam at 100 degrees C. Water is flowing out of a hose line at a rate of 625 LPM. Calculate the amount of ener
As the two gases diffuse down the tube, a white ring of NH4X produces 86.3 cm from the ammonia flask. Find out the element X name or symbol. A flask of ammonia is connected to a flask of an unknown
When a 1.48 g sample of this compound placed in a contained and warmed to the 165 degrees C, it has a pressure of 805 torr and a volume of 650 mL.
Suppose that rubbing alcohol (C3H8O) which is having 1.02g evaporates from a 54.0g aluminum block. If the aluminum block is initially at the 25'C, describe the final temperature of the block after t
Initially [SCl2] = 0.675 M and [C2H4] = 0.973 M, and after the reaction reaches equilibrium [S(CH2CH2Cl) 2] = 0.350. how can describe the equilibrium constant for this reaction?
Estimate the equilibrium concentration of N2? For the nitrogen fixation reaction 3H2 (g) + N2(g) 2NH3(g), Kc =6.0 × 10-2 at 500°C if 0.250 M H2 and 0.050 M NH3 are present at equilibrium.
Assuming that the reaction SO2(g) + H2O(l)--> H2SO3(l)is quantitative, discuss how much sulfurous acid is produced when 100.0 g of sulfur dioxide are mixed with the 60.0 g of water?