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A single Lewis structure for the phosphate ion (), assuming that the phosphorus atom can expand its octet such that the formal charge on each of the atoms is minimized
determine the final volume of the gas If the gas ocupied 68mL, initally and determine the molarity of the solution
Drain cleaner dissolves a hair clog in a bathroom drain. Is this a chemical or physical change
How would you create a 100ml solution with both 2.6M NaCl & 0.5M EDTA if your stock solutions are 5M NaCl & 2M EDTA? How much DH2O would you need to add
The decomposition of N2O into N2 and O in the presence of gaseous argon follows second order kinetics with K= (5.0x10^11 Lmol^-1s^-)e^-29000K/T. What is the energy of activation of this compound
Suppose HI at 5.00 10^-1 M, H2 at 1.00 x 10^-2 M, and I2 at 5.00 x 10^-3 M are mixed in a 5.0 L container. Calculate all concentrations at equilibruim.
The single atom of an isotope does not have a: a)relative atomic mass b) atomic number c)mass number d)average atomic mass
An oxygen tank kept at 20 degree C contains 28.0 moles of oxygen and the duage reads 31.0 atm. after two weeks, the guage reads 10.5 atm how many moles of oxygen
Explain why the atomic mass of an atom is a decimal number and how that value was determined before being placed on the periodic table.
what percentage of the acid is not ionized? (Assume all H in solution came from the ionization of HA.)
How many moles of ions are released when 0.27 mol of cobalt(II) chloride, CoCl2, is dissolved in water?
A solution is prepared by mixing 52.0 g glucose (C6H12O6) with 510.0 g water. What is the vapor pressure of this solution at 25°C
A certain wavelength is 1100 nm. What is the energy for a mol of photons (J/mol) with this wavelength
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