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Note the lewis structure H3O+. Highly electronegative atos often have a partial negative charge on them. negative formal charges, on the other hand, are not necessarily found on highly electronegative atoms. comment on the situation in this case. is the positive charge of hydronium ion on the least electronegativity atom? is this reasonable? is there a choice?
How many grams of KCl are contained in 750.0 mL of a 0.250 Molarity solution
What mass percent sucrose (C12H22O11)should be present in an aqueous sucrose solution to raise the boiling point to 100.00 degrees celsius at this pressure
Calculate the change in pH of rainwater resulting from an increase in the Pressure of CO2 from 10^-3.5 atm to 10^-3.0 atm due to fossil fuel emissions
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.75 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)
limestone is decomposed by heating to quicklime and carbon dioxide. Calculate how many grams of quicklime can be produced from 1.0 kg o limestone.
Titration of a Weak Acid with a Strong Base, Find the pH before, at, and after equivalence point of 35 ml of 0.15 M lactic acid with 0.18 M NaOH.
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25. Suppose that 1.15 of rubbing alcohol evaporates from a 65.0 aluminum block.
Find the volume if Zinc Coating(both sides) the thickness of Zinc Coating in cm (both sides) and the thickness of Zinc Coating in cm (one side)?
Draw the lewis dot structure oxalate and for carbon dioxide. In terms of electronic structure, what happens when oxalate decomposes
Calculate the pH of a solution prepared by mixing 300 mL of 0.25 M sodium hydrogen ascorbate and 150 mL of 0.2 M HCl plus water to a final volume of one liter. The Ka of ascorbic acid is 5 x 10-5.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.6 mg sample of the material in enough water to make 37.9 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
Which element has the most atoms? 10 grams of neon, 16 grams of oxygen, 32 grams of selenium,
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