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What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom?
* State what the patient can include and avoid in her diet on a regular basis to avoid these symptoms in the future.
Determine the empirical formula of a compound that is 32.79% Na,12.90% Al with the remainder F.If the molecular mass is approximately 200 amu
The solubility of AgCrO4 is several times greater than that of AgCl, so the red precipitate cannot form until all the chloride ions have effectively been removed from the solution.
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
The bond distance and dipole moment calculated for the highly reactive gas phase OH molecule are 0.98Ao and 1.78D, respectively. Compute the effective charges on the O and H atoms of the OH molecule (in units of the electronic charges).
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
A sample of a gas occupies 1470 mL at 60.7?C and 740 torr. What volume would it occupy at the same pressure and 450?C.
What is the total pressure exerted by a mixture of 1.50 g H2 and 5.00 g N2 in a 5.00 L vessel at 25 ºC
calculate the amount of energy required in calories to heat 145g of h2o from 22.3 degrees c to 75.0 degrees c.
Which of the seven cations will be the hardest to detect (same anions as above), Why do you think this? If two or more are possible explain why.
The Kf for Cu(en)2^2+ is 1 x 10^20. What is the concentration of Cu^2+ (aq) in the solution?
How many grams of F- must be added to a cylindrical water reservoir having a diameter of 8.88 × 102 m and a depth of 78.88 m? (b) How many grams of sodium fluoride, NaF, contain this much fluoride?
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