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1) Peroxydisulfate ion oxidizes iodide ion to triiodide ion, I3-. The reaction is S2O82- (aq) + 3I - (aq) ? 2SO42- (aq) + I3- (aq)
If the sulfate anion (SO42-) is formed at a rate of 0.040 M/min, what is the rate of formation of I3-? What is the rate of consumption of S2O82-? What is the rate of consumption of I-?
A Solution is made by dissolving 8.5 grams of NaOH in 2.3 L of water. What is the molarity of the solution?
which had been effectively diluted to a volume of 200mL? b) how many grams of Cu were in the sample? c) how many grams of Cl were in the sample? How many moles? d) What is the formula of the copper chloride compound?
The chemical formula of hydrogen cyanide is HCN. How many unshared electrons are associated with a molecule of hydrogen cyanide.
A 1.30 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mass percent, molality, mole fraction, and normality of the citric acid. Citric acid has three acidic protons.
The Henry's Law constant of methyl bromide, CH3Br, is k = 0.159 mol/(L • atm) at 25°C. What is the solubility of methyl bromide in water at 25°C and at a partial pressure of 250. mm Hg?
Vinegar is 5% acetic acid and its molarity is 0.833M. Is the concentration of the hydronium ion in vinegar greater than, less than, or equal to 0.833 M--why or why not. Explain why it is incorrect to directly calculate the pH of vinegar from the m..
no2nbspreacts with f2nbspto give no2nbspaccording to the following overall reaction2no2g f2g rarr 2no2fgwhat is the
Complete the mechanism for the base-catalyzed racemization of the chiral ketone below by adding any missing atoms
If 8.40 kJ of heat is needed to raise the temperature of a sample of metal from 15 degrees celsius to 20 degrees celsius, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 25 degrees celsius to ..
Water in an enclosed vessel at 17°C contains a concentration of dissolved oxygen of 6 mg/L. At equilibrium, determine the concentration of oxygen in the space above the water in molal fraction. and the total pressure in the vessel. Henry's law con..
calculate the molality (m) of the following solutions: a)65.0 g of glucose, C6H12)6, a nonelectrolyte, added to .112 kg of water. b).320 mol of sucrose, C12H22O11, a nonelectrolyte, dissolved in 1.50 kg of water
Air is a mixture of N2,O2,Ar,Co2,Ne,He,CH4,lessor amounts of the other gases and possibly substantial amount of H2O in vapor form.
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