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calculate the percentage of empty space in 1 mole of water at 25 c. obbtain the density from the experiment" some measurements of mass and volume." the volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms and the oxygen atom. use the single bond covalent radii of 37 pm for hydrogen and 66 pm for oxygen.
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
What will be the freezing point and boiling point of this aqueous solution if given that Kb(H 2 O) = 0.51 oC/m and Kf = 1.86o C/m.
Barium metal crystallizes in a body centered cubic lattice. the unit cell edge length is 502 pm and the density of the metal is 3.50g/cm3. using the information, calculate the avogadros number. assume 68% of the unit cell is occupied.
Ethylene glycol, antifreeze, has a density of 1.11 g/cm^3.a. What is the mass, in grams, of 410 mL of ethylene glycol?
If each mole of gas occupies 55 L under the conditions of the explosion, how many liters of gas are produced? c) how many grams of N2 is produced in the detonation?
A mixture of 0.0319 g hydrogen and 0.0178 mol oxygen in a closed container is sparked to initiate a reaction. How many grams of water can form?
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86 mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%.
Calculate the mass of HONH2 required to dissolve in enough water to make 250.0 ml of solution having a pHof 10.00 (Kb=1.1*10 (-8).
Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
Calculate the mass of propylene glycolC3H8O2 that must be added to 0.320kg of water to reduce the vapor pressure by 2.88torr at 40C Pressure H2O 40C 55.3torr
Use resonance structures to show which three carbon atoms bear the unpaired electron.
For 550.0 mL of pure water, calculate the initial pH and the final pH after adding 0.010 mol of pH
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