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Consider the reaction of sulfur dioxide and water, which is represented by the following equation: 2SO2(g) + 2H2O(g) ® 2H2S(g) + 3O2(g) How many moles of electrons are transferred according to t
Why are the bond angles of methane, ammonia, and water different for each even though the electron domain geometry is the same for each
An aqueous solution containing 5.77 g of an optically pure compound was diluted to 500.0 mL with water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -3.95° at 25 °
It is possible to make a barometer using a liquid other than mercury. What would be the height (in meters) of a column of water at a pressure of 0.390 atm, given that 0.390 atm is equal to a 0.296 m
indicate the direction of the bond polarity of NH3 and CH4. are either of the molecules polar. is ClH3 polar. why or why not.
Draw the MO diagram for S2 and indicate all atomic and molecular orbitals for both core and valence electrons.
The first dissociation constant for carbonic acid (H2CO3) is K1 = 4.45e-7. Assume all activity coefficients are equal to 1.0. What is the concentration of carbonic acid in a) moles/liter, b) mg/l as
Calculate an approximate delta_h in kilojoules for the industrial synthesis of ethyl alcohol from ethylene: C2H4(g) + H2O(g) -> C2H5OH
Identify the change in state that does not have an increase in entropy. Identify the change in state that does not have an increase in entropy. Water freezing Dry ice subliming Water evaporating Ice
If the boiling point of the pure of (S)-(-)-alpa-phenylethylamine is 186-188 degrees Celsius, what is the bp of its enantiomer. What optical rotation would be observed if 3.72 g of (S)-amine were mi
Dopa (Levodopa) is an oral medication used to treat Parkinson\'s disease, the symptoms of which result from a lack of dopamine in the brain. L-Dopa relies on L-type, or leucine-preferring, transport
Using the Clausius-Clapeyron Equation, estimate the melting temperature of ice below an adult wearing ice skates? How might this help someone skate? Some useful data: vL = 1.00 × 10?3 m3/kg hS
The osmotic pressure of blood at normal body temp of 37 deg C is 7.65 atm. Sometimes it is necessary to add a saline (NaCl) solution by intravenous injection to a patient in the ER.
In the following chemical equation, what is the reactant. CuSO4·5H2O(s) ® CuO(s) + SO3(g) + 5H2O(l)
A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL. After water vapor is removed
Consider the following element combinations. Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's position on the periodic table:
Treatment of 1-butanol with phosphoric acid (H3PO4) mixed with sodium chloride should result in the formation of 1-chlorobutane. write the mechanism for this reaction.
When 49.4 mL of 0.721 M lead(II) nitrate reacts with 99.6 mL of 0.807 M sodium chloride, 0.830 kJ of heat is released at constant pressure. What is DH° for this reaction
What is the pressure in a 1.00 Liter container of methane, CH4, that contains 40.0g of the gas at 25.0 degrees Celcius
What absorbance would be obtained for a solution that has an absorptivity of 4700 L/mol*cm for a 1.5x10^-4 solution in a 1.0 cm cell? What would the percent transmittance (100*I/Io) be
Calculate the values of k and kc for the reaction 3N2(g)+H2(g)<----->2NH3(g) at 25 c and 100c.
Consider the reaction at 25C 2NO2 --> 2NO + O2 The overall rxn rate = k[NO2]2. The rate constant, k = 1.4 × 10^10 M-1 s-1. If 3.8 moles of NO2 are initially present in a sealed 1.00 liter v
The molar mass of an unknown gas was measured by an effusion experiment. It was found that it took 63 s for the gas to effuse, whereas nitrogen gas required 48 s. The molar mass of the gas is
calculate the density in (g/L) of CH3CH3 in a 1.00L sealed flask at 85 degrees celsius and 500mmHg
Stearic acid is an unsaturated fatty acid b.the short hand notation for fatty acid that is 20 carbons long with one double bond at carbon 5 can be written as 20:1(delta5)