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Consider the following statement: "For some molecules and ions, a Lewis structure that satisfies the octet rule does not lead to the lowest formal charges, and a Lewis structure that leads to the lowest formal charges does not satisfy the octet rule." Illustrate this statement using the hydrogen sulfite ion, HSO3-, as an example (the H atom is bonded to one of the O atoms).
Draw all possible Lewis structures for HSO3-.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all nonhydrogen atoms in the correct structure.
separation of acetone from water by using mibk.a stream containing 30 wt acetone and the balance water is to be
what mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepar a 0.0500 molal solution of ethanol
A gaseous fuel mixture stored at 752mmHg as well as 298K contains only methane (CH4) and propane (C3H8). While 12.6 L of this fuel mixture is burned it produces 762kJ of heat.
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted
silver nitrate and sodium phosphate are reacted in equal amounts of 200.0 grams each to produce silver phosphate and
Presume that when you plot a series of volumes as a function of temperature, the equation for your line of best-fit is y=0.1444x+43.51. Explain what is the value of T0
A 202 mL benzene solution containing 2.27g of an organic polymer has an osmotic pressure of 8.63 mmHg at 21 degrees Celsius. Calculate the molar mass of the polymer
What mass of water (in grams) forms from the reaction of 2.58 L of hydrogen gas and 2.26 L of oxygen gas?
10.0mL of a solution that contained 0.0300g of an unknown complex Ni salt. You titrated that 10.00 mL with a 0.005 M EDTA solution; 26.58 mL of EDTA was needed to reach the endpoint. Knowing that the Ni2+ reacts with EDTA in the mole ratio of 1 to..
what mass of nacl is required to lower the freezing point of 1.75kg of water by 2.5 c? what mass of cacl2 would
A solution is prepared by dissolving 16.2 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.50 mL sample of this stock solution is added to 59.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
a 45 kg person drinks 390. g of milk which has a caloric value of approximately 3.0 kjg. if only 18 of the energy in
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