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The heat energy required to melt 1.00 g of ice at 0 degrees C is 333J. If one ice cube has a mass of 62.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of i
ammonia undergoes autoionization by the transfer of a proton: 2NH3 NH4+<-----> + NH2-, K = 1×10^-33 at -50°C Since ammonia is better proton acceptor than water, the ionization of aci
The reaction of methane and water is a way to prepare hydrogen according to CH4 (g) + H2O = Co2 (g) + H2 (g) a) If 995 g of CH4 reacts with 2510 g of water, how many moles of reactants and products
For each of the following reactions, identify which reactant is the Lewis acid. Select 1 if the first listed reactant is the Lewis acid or 2 if the second listed reactant is the Lewis acid
Calculate the mass percent composition of carbon in each the following carbon compounds. Express your answer using 4 significant figures. C4H10 C6H10 C8H13O5N
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry
Liquid HCN is unstable with respect to trimer formation. What would be the structure of this trimer
Use the enthalpies of bond formation to rationalize why nitrogen forms a dimer and phosphorous a tetramer.
A 46.2mg sample of phosphorus reacts with selenium to form 135mg of the compound. What is the empirical formula of the phosphorus selenide
When white phosphorous (P4) is heated above 1100 K, the following equilibrium is observed in the gas phase P4 ? 2P2 b. The equilibrium constant has been measured as a function of temperature for thi
Acetic acid when pure, has a freezing point of 16.0 Celsius; Liquid acetic acid has a heat capacity of 1.96J/g*C. A 25.0 g piece of solid acetic acid at 16.0C is placed into an insulated container c
A sample of unknown hydrate of FeCl3 weighs 8.693g. After heating the sample to constant mass, the remaining anhydrous salt weighs 5.216g. What is the experimental formula for the hydrate
1.3 Kg of Ethane gas (C2H6 ) was heated from 27.0 degree Celsius to 78.0 degree Celsius. Calculate delta E at constant pressure. ( Cp= 52.92 j / K mol)
Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4 of mass 20.0 mg.
Chloromethane,CH3Cl, arises from the oceans and from microbial fermentation and is found throughout the environment. It is used in the manufacture of various chemicals and has been used as a topical
Use the rydberg equation to calculate the wavelength in angstroms of the photon absorbed when a hydrogen atom undergoes a transition from n = 1 to n = 3
The central atom has 4 electron domains. d) The central atom has 5 electron domains. e) The central atom has 2 electron domains.
How many electrons in an atom could have these sets of quantum numbers? A) n=3, B) n=5, l=0 and C) n=6, l=1, ml=-1
Consider the titration of 30.0mL of 0.050M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of tirant have been added.
Since ammonia is better proton acceptor than water, the ionization of acids is relatively enhanced in liquid ammonia. For example, acetic acid is a strong acid in liquid ammonia. part( a)Estimate [N