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Problem- An ionic compound formed when lithium (z=3) reacts with oxygen (z=8). if a sample of the compound contains 6.85*10^20 lithium ions, how many oxide ions does it contain?
* 10^O^2- ions (Enter your answer in scientific notation)
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An aqueous solution with a specific gravity of 1.12 flows through a channel with a variable cross section, data taken at two axial positions in the channel are shown here. Point 2 is 6.00 meters higher than point 1.
Write a balanced (a) molecular, (b) overall ionic, and (c) net ionic equation for the reaction between an aqueous solution of phosphoric acid, H3PO4 (aq) , and an aqueous solution of sodium hydroxide. The products are sodium phosphate and water
Use the angular overlap method to calculate the energies of both ligand and metal orbitals for trans {Cr(NH3)4Cl2}+, taking into account that ammonia is a strong sigma donor ligand than chloride , but chloride is a stronger pie donor. use the 1 an..
A 36.5 g sample of the metal is taken from a boiling water bath at 100.0°C and placed in the calorimeter. The equilibrium temperature of the water and sample is 32.5°C. The calorimeter constant is 1.87 J/°C. Calculate the specific heat of the meta..
what volume of pure oxygen gas o2 measured at 546 k and 1.00 atm is formed by complete dissociation of 0.7 mol of
The rate constant of a first-order reaction 7.60 *10^-4 s^-1 at 350 degree celcius. If the activation energy is 134 KJ/mol, what is the temperature at which its rate constant is 9.70 *10^-4 s^-1
Draw the structures of the two carbocation intermediates that might form during the reaction of the alkene (below) with HCl. If the two carbocations differ in stability, draw a reaction arrow from the less stable to the more stable.
what volume of liquid benzene must be vaporized to give that average concentration in a room
Question- Imagine that you could hold two atoms that are bonded together, twist them, and not change the bond length. Would it be easier to twist (rotate) around a single bond or around a double (plus) bond, or would they be the same
Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the strong base Ba(OH)2 (aq) and the strong acid HI (aq)
The solvent for an organic reaction is prepared by mixing 60.0 of acetone () with 56.0 of ethyl acetate (). This mixture is stored at 25.0 . The vapor pressure and the densities for the two pure components at 25.0. What is the vapor pressure of th..
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