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For which of the following pairs are the atoms most likely to form an ionic bond with each other? A) carbon and oxygen B) calcium and chlorine C) chlorine and oxygen D) sodium and magnesium
A 0.0100 molal aqueous solution of a weak acid freezes at -0.0219 oC. Calculate the percent ionization of the weak acid, HA.
Partial pressure of argon = ( ? )atm. Now suppose that 7.00 moles of xenon are added to the vessel without changing the volume or temperature. What is the partial pressure of argon now
Calculate the pH of a 0.0155 M solution of carbonic acid H2CO3. The Ka1 of carbonic acid = 4.3 x 10-7 and the Ka2 of carbonic acid = 5.6 x 10-11.
Calculating Volume Needed for Level of pH, A 1.00g sample of benzoic acid (C6H5CO2H, FW = 122.12g/mol,Ka = 6.5 x 10^ -5) is dissolved in water to give a solution with a volume of 500mL.
What is the density of lead if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9g.
What is the molar mass of a nonelectrolyte compound if 3.42 grams of the compound dissolved in 41.8 grams benzene begins to freeze
DRAW a flow chart to show how triphenylmethanol is purified by extraction. Indicate which layer contains the product.
Calculate the collision frequencies z12 and z21, where hydrogen is component 1 and chlorine is component 2. Given: d1=0.272nm and d2=0.544nm.
Determine the final concentration if A 129 mL portion of that solution is diluted using water of 149 mL.
What is the probability that the particle is in the left quarter of the box for n=1?, n=2?, n=3?
estimate the enthalpy of vaporization of water 100 degree celcius from its value at 25 degree celcius (+44.01 kJ mol^-1) given the constant pressure heat capacities of 75.29 kJ^-1mol-1 and 33.55 kJ-1mol-1 for liquid and gas, respectively.
indicate whether each are activating or deactivating, and whether each are ortho para or meta directing substituents.
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