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What hybridization is needed to describe the square planar molecular geometry of Krf4? Explain how the hybridization is done.
Due to an unexpected malfunction, both inlet and outlet streams are closed. C is a toxic chemical that is harmful if its concentration gets above 2.0 mol/L. How long do you have to get the products out before safety is a concern
Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C6H5COOH) and 0.15 M sodium benzoate (C6H5COONa). Ka= 6.5 x 10^-5 for benzoic acid. Please show your work for how you got this.
Question- A crystal lattice has copper at all the corner positions and nickel at all the edge positions in a unit cell. What is the formula of the unit cell
For propanoic acid (HC3H5O2, Ka = 1.3*e-5) find out the concentration of all species present, the PH as well as the percent dissociation of a 0.100 M solution.
Calculate the mass of a single particle of Na2CO3 and the number of particles of Na2CO3 in the mixture. Do the same for K2CO3.
Question- Calculate the pH after addition of 60 mL of 0.150 M NaOH to the 40 mL of 0.150 M acetic acid. Subtract the moles acid from the moles of base. The base will be in excess.
A rock contain 3.2 grams of a radioactive isotope, uranium-235, . Determine what was the original amount of uranium-235 in the rock If the rock has undergone 2.75 half lives, and how old is the rock?
How many isomers are there for the trifluorotrinitrocobalt (III) complex? Draw them. Are any enantiomers. Label each structure with an appropriate descriptor
What are the favored geometrical arrangements for ABn molecules for which the "A" atom has 2,3,4,5 and 6 pairs of electrons in its valence shell?
What is the difference between molecular formulas and structural formulas of organic compounds? In the crystal structure of NaCI, what are the number and type of ions that are nearest neighbors to each Na+ ion?
The Ksp of tin(II) hydroxide, Sn(OH)2, is 5.45 × 10-27. Calculate the solubility of this compound in g/L.
The rate constant of a reaction is 7.50*10-5 L/mol·s at 195°C and 5.30*10-3 L/mol·s at 258°C. What is the activation energy of the reaction, in kJ/mol
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