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a. Calculate the and the concentrations of all species present (H3O+,F-, Cl-,and OH-) in a solution that contains of HF 0.19 M (Ka=3.5*10^(-4)) and 0.19 M of HCl.
b. Calculate the concentrations of all species present (H3O+,F-, Cl-,and OH-) in a in a solution that contains of HF 0.19 M (Ka=3.5*10^(-4)) and 0.19 M of HCl.
A solution of 5.36 g of a molecular compound dissolved in 76.8 g benzene (C6H6) and has a boiling point of 81.46oC. What is the molar mass of the compound
A mixture of NaCl and sucrose of combined mass 10.2g is dissolved in enough water to make 250 mL of solution. The osmotic pressure of the solution is 7.32atm at 23 C. Calculate the mass percent of sodium chloride.
for the reaction 2a b --gt 2c if b is initially 4.0m and 2min later is 3.0m what is the rate of appearance of
An unknown monoprotic weak acid, HA, has a molar mass of 55.0. A solution contains 2.50 g of HA dissolved 800. mL of solution. The solution has a pH of 2.000. What is the value of Ka for HA
A gas is confined to a container with a massless piston at the top.A massless wire is attached to the piston. When an external pressure of 2.00 rm atm is applied to the wire, the gas compresses from 5.90 to 2.95 L. When the external pressure is in..
Calculate the molar solubility of FeCO3 . How many grams of FeCO3 are present in 15.0 L of a saturated solution.
For the reaction 3 C2H2=C6H6 at 25c the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K
Calculate the pressure and temperature at which 1.0 mol of H2O, HCl, and C6H6 corresponds to the same states as 1.0 mol of CH4 at 2.00 atm and 298
Calculate the pH of a solution containing 25.00 mL of 0.12 M formic acid (Ka = 1.7 x 10^-4) to which the following amounts of 0.10 M NaOH have been added
What mass of Ag2CO3(s) in grams is theoretically produced by mixing 125 mL of 0.315 M Na2CO3(aq) and 75.0 mL of 0.155 M AgNO3(aq)?.
If 500 g of KCIO3, decomposes and produces 303 g of KCl, how many grams of O2 are produced?
If the initial concentration of N2O4 is 0.50 M, and no NO2 is initially present, what is the equilibrium concentration of N2O4? Kc = 0.0059 at 298 K N2O4 (g) 2NO2 (g)
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