Calculate the atomic weightof the element
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 2.82A(A with a circle on top), and the density of the crystal is 7.92g/cm^3. Calculate the atomic weightof the element.
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If 2.00 moles of a substance is dissolved in 1.00 kg of water the freezing point of the solution decreases by 7.44 celsius. does this substance dissociate to form ions in solution? why?
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Drug medications are often prescribed on the basis of body weight. The adult dosage of Elixophyllin, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 150-lb person.
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Separation of gold from other materials involve the use of potassium cyanide in the following equation:What is the minimum amount of KCN in grams needed to extract 69.3 g of gold?
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