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State the full ground-state electron configuration for the following. State answer using the format 1s2 2s2 2p6 for 1s22s22p6.)
(a) Br
(b) As
(c) Mg
Calculate the amount of heat transferred when 23.0 of CH_2OH(g) is decomposed by this reaction at constant pressure.
Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these conditi..
How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cinnamic acid)
Determine the hybridization about each interior atom in the following structure. Sketch the 3 dimensional structure and label the interior atoms with their corresponding hybridization. CH2CHCCCH3
Calculate the percent by mass of aluminum in the sample. The vapor pressure of water at 20 degree C is 17.5 Torr.
A fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called
A chemistry student needs to weigh out exactly 1.19 mol of Mg(HCO3)2 to perform a laboratory experiment. How many grams should he weigh out?
An aqueous solution containing 4.95 g of an optically pure compound was diluted to 300 ml with water and placed in a polarimeter tube 20 cm long. The measured rotation was -3.01 degrees at 25 degrees Celsius. Calculate the specific rotation of the..
To determine the concentration of a 25.0 mL ammonia solution (Kb for NH3 is 1.8 x 10-5), 25.0 mL of 0.200 M HCl solution is used. Calculate the pH of the endpoint.
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
Arrange the following in order of increasing basicity: a) ch3nh2, ch3nh3+, ch3nh- b) ch2o-, ch3nh-, ch3ch2- c) ch2ch(triple-bond)ch-, ch3ch2ch2-, ch3c(trip-bond)c-
What will be the volume occupied by an ideal gas at 75kPa after it has expanded from 10.0 L and 145kPa at constant temperature
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