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A paint contains 180.0 ppm lead. Approximately what mass of lead will be in 1.00 cm ^3 of this paint when 1.00 gal is uniformly applied to 445.0 ft2 of a wall. The density of the paint is 8.00 lb/gal.
Determine the heat transfer (q) experienced by the calorimeter for this reaction. b. Determine the ?Hrxn per mole of HI. c. Identify whether this reaction is endothermic or exothermic and explain your reasoning.
Write equations for the dissociation of the following in water. Include physical states for all species.CaCl2
A chemistry student needs of 40 ml chloroform for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of chloroform is 1.48g x cm^-3 . Calculate the mass of chloroform the student should w..
question a 17.9 g sample of an alloy at 98.0degc is placed into 127.2 g of water at 22.0 degc in an insulated coffee
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
How many grams of F- must be added to a cylindrical water reservoir having a diameter of 8.88 × 102 m and a depth of 78.88 m? (b) How many grams of sodium fluoride, NaF, contain this much fluoride?
The Ka for lactic acid is 1.4x10^-4. What is the pH of this buffer after .10 mol of solid NaOH has been added?
Problem- Ethyl acetate reacts with H2 in the presence of a catalyst to yield ethyl alcohol- C4 H8O2(l) +H2(g)-------> C2H6O6(l) Part a) Write a balanced equation for the reaction.
Washing soda is often added to detergent formulations to make the wash water more basic. What is the formula of the NONHYDRATED form of washing soda? Does it increase or decreased the pH of the wash water?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
1- what is the difference between the geometric arrangement of electron pairs and the geometric arrangement of atoms?
A solution is 0.020 M in each Ca2+ and Cd2+. What would be the resulting concentrations of the ions if the solution were adjusted to a pH of 12?
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