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Question- A solution of formic acid (HCO2H, Ka = 1.7 X 10^-4) has a pH of 2.56. What is the original molarity of the HCO2H solution?
I am in urgent need of solution of above problem with complete explanation
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
Using information from the table of Standard Thermodynamic Data, calculate the equilibrium constant, Keq, for the reaction given below at 298 K.
use average bond energies to estimate the energy change in kjmol for the reaction all bonds are single bonds except as
A professional scientist measures out eaxctly 100.00cm3 of a liquid, and finds that its mass is exactly 80.000g. What is the density (in g/cm3) of the liquid
Determine whether a bond between each of the following pairs of atoms would be pure covalent, polar covalent, or ionic. H and H N and O N and Cl
if the pressure of a gas sample is quadrupled and the absolute temperature is doubled by what factor does the volume of
Solve an equilibrium problem (using an ICE table) to calculate the pH of a solution that is 0.185 M in HC2H3O2 and 0.120 M in KC2H3O2
Problem- A certain gas is present in a 11.0L cylinder at 2.0atm pressure. If the pressure is increased to 4.0atm the volume of the gas decreases to 5.5L . Find the two constants ki, the initial value of k, and kf, the final value of k, to verify w..
Calculate the change in Gibbs free energy for each of the following sets of delta H, delta S and T. Predict whether or not the reaction will be spontaneous at temperature indicated.
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz ({\rm MHz}), where 1\; {\rm MHz}=10^6\; {\rm Hz}. Calculate the broadcast wavelength of the radio station 102.7 FM
Magnesium has three naturally occurring isotopes, 24Mg (isotopic mass = 23.9850 amu, abundance 78.99%), 25Mg (isotopic mass = 24.9858 amu, abundance 10.00%), and 26Mg (isotopic mass = 25.9826 amu, abundance 11.01%)
Select the gas with the largest root-mean-square molecular speed at 25°C. a. NH3 b. CO c. H2 d. SF6
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