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Calculate the formal charge on the indicated atom in each of the following molecules or ions. Some molecules may have more than one possible resonance structure, each resulting in a different possible formal charge on the indicated atom. In such cases, supply both unique formal charge values separated by commas.
what is E cell under final equilibrium conditions of: 0.52 M Cr2O72-; 2.25 M HCl; and 0.56 M I-, resulting in a pressure of I2 that is 0.142 atm and a chromium (III) ion concentration of 0.45 M
The final temperature of the water and metal was 25.0 C. Assuming no heat is lost to the surroundings,calculate the specific heat of the metal and estimate its atomic weight
Based on ion charges and relative ion sizes, rank these ionic compounds by their expected melting points (highest to lowest).
a 4.50-g sample of licl at 25.0 c dissolves in 25.0 ml of water also at 25 c. the final equilibrium temperature of the
Doubling the concentrations of H2S while keeping the concentration of Cl2 constant results in the initital rate increasing by a factor of two.
How many grams of Mg(NO3)2 (Mm=147 g/mol) must be added to 405 g of water to make a solution with a colligative molality of 0.125 m?
Two substances are mixed together. Explain how the observer could determine if this reaction is just a mixture or an actual chemical reaction. Give an example of two reactants that would form a mixture and two reactants that would form a chemic..
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.30°F and a standard deviation of 0.8490
you want to carry out chemical reaction that is water sensitive, however the glassware contains salts and you need water to wash them out. the reaction you are going to perform can be done either in acetonitril or toluene
What is the molarity of the resulting solution when 20.0 mL of a 2.00 M aqueous solution is diluted by the addition of 30.0 mL of water
Calculate the total mass of the neutrons in 19/9F. Use 1.008665 amu as the mass of 1/0N(mass of a neutron). Express your answer in atomic mass units to 7 significant figures. Calculate the mass defect of 19/9F. Use 18.9984 amu as the actual mass o..
the reaction of no with cl2 is2 no cl2 2 nocluse reactant molecules to write appropriate elementary reactions that
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