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Express the concentration of a 0.0260 M aqueous solutioin of fluorire, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
Determine the number of bonding electrons and the number non-bonding electrons
Lewis Structure for a Nitrate Ion (NO3-1). For the correct structure of the nitrate ion, what is the bond angle from O-N-O
how would you prepare 2.500 liters of 1.500 M nitric acid from a stock solution of concentrated (16.05 M)
draw an alkyl bromide that will give only 24-diphenyl-2-pentene upon treatment with potassium t-butoxide a bulky base
What is the equivalent weight of (MnO4). How many equivalents of electrons were delivered to the unknown soln
If you mix 200. mL of 1.0 M KCl with 300. mL of 2.0 M KCl, what is the molarity of KCl in the final solution?
a sample of 1.42 g of helium and an unweighed quantity of oxygen are mixed in a flask at room temperature. the partial
a solution containing 3.50 of sodium carbonate is mixed with one containing 5.00 of silver nitrate. how many grams of
Calculate the pH of a buffer solution made by mixing 49 ml of a 0.07 M ammonia solution with 52 ml of a 0.10 M ammonium nitrate solution. Give the pH to two decimal places.
What is the percent yield of 2 Na3[Co(C2O4)3]•3H2O(s) if 7.6 g is obtained from 12.5 g of [Co(H2O)6]Cl2(s)
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
How much energy, in joules, must be absorbed to convert to Na^+ all the atoms present in 1.00mg of gaseous Na. The first ionization energy of Na is 495.8kJ/mol.
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