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Hydrogen has two naturally occurring isotopes: normal hydrogen (H) with atomic mass of 1, and deuterium (D) with atomic mass of 2. A mixture containing equal number of moles of H2 and D2 is allowed to effuse down a capillary. What percent of the molecules effusing first would be D2?
For the compound MX, Ksp is 2.00 × 10-11. The anion X- forms the weak acid HX (Ka = 1.8 × 10-5). Calculate the solubility of MX in 10.00 M strong acid
Based on the given chemical equation, how many grams of aluminum are needed to react with 0.6 moles of hydrochloric acid? Al + HCl yields AlCl3 + H2
you have a 1mm stock solution of arsenic to treat culture cells in a liquid medium. you need to treat your cells with
Indicate whether or not, each has a fixed shape or fixed volume. In addition, include their relative kinetic energies. Pictures can be drawn to assist in the explanation.
A 13.53 mL sample of 0.05000 M AgNO3 is added to an ion exchange column; the solution that emerges from the other side is found to be acidic. Titration of the solution that comes out of the column requires 22.75 mL of 0.02000 M KOH
Calculate the mass of nitrogen dissolved at room temperature in an 84.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
One can approximate boiling point at reduced pressure using a pressure-temperature nomograph. What would you expect the observed boiling pint to be at 50 torr(mm) for a liquid that has a boiling point
Starting with only the solid, it is found that at 40C the total gas pressure (NH3 and CO2) is 0.33 atm. Calculate the euilibrium constant Kp/
After the washing in this preparation, the 1-bromobutane was treated with anhydrous sodium sulfate
a student ran the following reaction in the laboratory at 338 k2 nog br2g 2 nobrgwhen she introduced 0.116 moles of
A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100.- g sample of this compound. what are the
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