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Aluminum is a lightweight metal (density=2.70 g/cm^3) used in aircraft construction, beverage cans, and foils. a) What is its density in kg/m^3? b) How many pounds would an aluminum clock measuring 1.0 m x 2.0 m x 1.5 m weigh?
what is the molar concentration of the salt solution formed in this reaction? What is the molar concentration of the excess reactant once this reaction has finished?
What is the pH of a solution which is 0.025M in weak base and 0.035 M in the conjugate weak acid (Ka=7.1 x 10^-6)c
During the purification and recrystallization of a solid why can't you just remove the solvent by evaporation after filtering and decolorizing
The normal boiling point of methanol is 64.7 degrees C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 450.7 torr at 64.7 degrees C.
How many grams of body mass does the person lose in about 8 h sleep if all the CO2 and H2O exhaled come from the metabolism of glucose
Calculate the molarity of 500.0 cm3 of solution containing 18.5 g of calcium nitrate Ca(NO3)2
A certain weak acid HA, has a value of 9.7×10?7.Calculate the percent ionization of HA in a 0.10 m solution. Calculate the percent ionization of HA in a 0.010 m solution.
What is the total electronic energy
The value of E° for each of the cells is 2.04 V. Suppose that in starting a car on a cold morning a current of 108 A is drawn for 14 seconds from the car battery. How many grams of Pb would be consumed? (M r(Pb)=207.19 g/mol)
A flask is filled with vapor by boiling a volatile unknown liquid in the foil covered flask. As it boils away, the vapor of the unknown pushes the air out of the flask through a tiny pinhole opening and eventually the flask is filled with an atmos..
has a standard free-energy change of -4.00 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively
Create a pH-log concentration plot for carbonate and acetic acid for total concentrations of 10-3 and 10-4, respectively. Discuss the relative importance of the various species as a function of pH and how the plot relates to the dissociation const..
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