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The electron affinity of each group 5A elements is more positive than that of each corresponding group 4A element. Use the electron configuration of the valence electrons for these columns to suggest a reason for this behavior.
How many valence electrons are there for the POCl3 molecule? Draw a reasonable Lewis structure for POCl3. Assign formal charges for the atoms in your Lewis structure
How could you convert butanenitrile into the following compounds? Write each step showing the reagents needed. (b) Butylamine and (c) 2-Methyl-3-hexanone
an excess of zinc metal reacts with 500. ml of 12m hydrochloric acid and produces 48.8 l of hydrogen gas at 20 degrees
140 mL of a .175 M aqueous solution of NH3 is titrated with a .106 M solution of HCl. (NH4+ Ka=5.56x10^-10)
If the overall of the coupled reaction is -7.60 , what is the equilibrium constant, , of the first reactions at 6? The for the hydrolysis of ATP to AMP is 31.6.
rank the given solutions in aquous form from lowest to highest boiling point 0.5 m nacl 1 m kcl 0.5 m bacl2 1 m
6.48g of NAH2PO4 and 21.96 g of K2HPO4 are dissolved in sufficent water to make a liter of solution. Caluclate the ph of the resulting solution.
Sulfate becomes bound to four Al(CH3)3 fragments in the dianion [Al4(CH3)12SO4]^-2. Using the bond angles and lengths as a guide decide if the Al(CH3)3 groups alter the SO4^2- group significantly upon formation of the [Al4(CH3)12SO4]^-2 product. E..
3230 J of heat are added to a 29.7 g sample of iron at 29 degree C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g. K
At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility at 25 °C and 1470 Torr
Calculate approximately the heat released when you are given a chemical equation as 2-methyl-1-propene CH 3 ) 2 C CH 2 reacts
the density of liquid water at 0 degrees c is 0.9987 gcm cubed the density of ice at this same temperature is 0.917 gcm
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