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Ethylene diamine tetra-acetic acid (EDTA) is awater-soluble compound that readily combines with metals, such ascalcium, magnesium, and iron. The molecular formula for EDTA isC10N2O8H16. Assume one EDTA molecule complexes(associates with) one metal atom.
A factory produces an aqueous waste that contains20 mg/L calcium and collects the waste in 44-gallon drums.What mass of EDTA would be need to be added to each drum to completely complex all of the calcium in the barrel.
At 25C, what is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H+]=2.7 x 10 ^ -6 M
Calculate the change in molar entropy when 2.00 miles of ozone are compressed isothermally to one quarter of its original volume. Treat ozone as an ideal gas.
a large weather balloon filled with helium as a volume of 7.00 x 102 l at stp. which expression should be used to find
What is theoretical yield of nitrogen monoxide in grams d. How many moles of excess reactant remain e. What is the % yield of the reaction
why are active on-duty firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon
Why we have a decrease in in the volume of the crude organic product during the extraction with HCl. What causes this decrease
A sample of argon gas occupies 125 L at 22C and .975 atm. What volume will it occupy at 60C and .825 atm?
Describe the technique used to determine the density of approximately 5 gram samples of the following at 20 degrees C and 1 atmosphere pressure: A) Gasoline B) Granular Sugar C) A lump of gold D) Mercury
The molar heat of vaporization of carbon disulfide, CS2, is 28.4 kJ mol-1 at its boiling point. How many kilojoules of heat would be liberated by the condensation of 9.75 g of carbon disulfide?
A rigid tank contains 1.50 moles of an ideal gas. Determine the number of moles of gas that nust be withdrawn from the tank to lower the pressure of gas from 25atm to 35 atm.
What is the buffer component ratio, ([CH3CH2COO-]/[CH3CH2COOH]) of a propanoate buffer that has a pH of 4.49. Ka of CH3CH2COOH is 1.3 x 10-5.
the solubility of oxygen in water at 25 degree celsius and 1.00 atm pressure is 0.041g/L. what is the solubility of oxygen in water at 6 atm pressure?
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