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A solution is made by dissolving 104.9 grams of sodium thiocyanate (NaCNS(s)) in enough water to make 1.000 L of solution at 20.0oC. The density of this solution is found to be 1.0491 g cm-3. The concentration of this solution in mass % is 9.9990%.
a) Calculate the molarity of this solution.
What is the empirical formula of a hydrocarbon which produces 2.703 g CO2 and 1.108 g H2O
sulfate pentahydrate are made into a solution with 512.441 g of water. What is the molality of the copper sulfate solution?
The colors of the acid and base forms of the indicator bromocresol green are yellow and blue, respectively, and its pKa is 4.6. What color would be expected for the indicator in a solution of pH 6.0 and in a solution of pH 4.8?
why are active on-duty firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon
the initial pH value was2.5. You found that pH=pKa=4.2 when 12.50 mL of NaOH hadbeen added. The concentration of the sodium hydroxide was 0.500M. Calculate the molar mass of the acid
Problem- Note the electronic structure of Cadmium (II) and indicate the group (type A, borderline, or type b) in which it should be placed. Predict the principal inorganic forms of the element in fresh and sea water under both oxidizing and reduci..
Three trials to determine concentration of unknown substance. Values: .210 M,.198M, .203 M . The actual concentration is .135 M.
The first-order decomposition of N2O5 proceeds as follows: 2 N2O5 (g) → 4 NO2 (g) + O2
In an acidic solution of HCl. The products are H20, CO2, the Mn (II) ion, and potasium and chloride ions that do not take part in the reaction. A. How many grams of the products are produced by the oxidation of C6H14O3 B. Balance the equation in b..
Ethene burns in air according to C2H4 + 3O2 = 2CO2 + 2H2O. What is the theoretical yield of CO2 when 1.62 g of C2H4 are reacted with 2.42 g of O2
What is the net ionic reaction for the reaction between aqueous solutions of hydrochloric acid with sodium hydroxide?
Draw a graph that shows the relative energy of the conformer as a function of the torsional angle. Make sure that you clearly label which conformer corresponds to which position on the graph
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