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(a) In part B of this experiment, you will use copper(II) sulfate pentahydrate. What is the molar mass of this compound? g/mol
(b) How much of this compound must be weighed to make 175.0 mL of a 0.15 M solution?
(c) How many mL of the 0.15 M solution should be diluted to prepare 150.0 mL of a 0.050 M solution?
the enthalpy of vaporization of ethanol i 43.5 kj/mole at its normal boiling point of 352 k. using avalue of the molar heat capacity of liquid ethanol of 111.46 j/k/mol
Atom A loses 1 electron and atom B gains 2 electrons. What formula results if these two ions combine to produce a neutral compound
Gas diffusion and Viscosity are both transport properties, Derive the general relationship between the viscosity for a gas and diffusion coefficient .calculate the diffusion coefficient if Given that the viscosity of Ar is 223 micro Pascals at 29..
A 25 ml sample of .10M sodium acetate is titrated with .10M HCl. What is the pH after the addition of 35ml of HCl. (Kb of CH3CO2=5.6e-10)
Assuming a tank temperature of 16oC, what mass of oxygen is contained in the two tanks?
Calculate the pressure difference between CH4 and an ideal gas under these conditions. The van der Waals constants for CH 4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
calculate the minimum concentration of mg 2+ that must be added to .10 M NaF in order to initiate a precipitate of magnesium flouride.
An open-end manometer containing mercury is connected to a container of gas. The mercury in the arm attached to the gas is 13.6cm higher than the one open to the atmosphere.
An optically activated alkyne A(C10H14)can be catalytically hydrogenated to butylcyclohexane. Treatment of A with C2H5MgBr liberates no gas.
Determine the pH of a solution of 10-3 M sodium formate. Formate is a byproduct of microbial metabolism, and can also serve as an energy source for anaerobic bacteria
A gas has a volume of 150 ml when its pressure is 0.947 atm. What will the volume of the gas be at a pressure of .987 atm, if the temperature remains constant
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
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