What is the specific heat of the alloy
A 25-g sample of an alloy at 92 degrees celsius is placed in 50 grams of water at 20 degrees celsius. If the final temperature reached by the alloy sample and water is 27 degrees celsius, what is the specific heat of the alloy?
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A long wire of diameter D = 1mm is submerged in an oil bath of temperature T∞ = 25°C. The wire has an electrical resistance per unit length of R'e = 0.01 ?/m.
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A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157g of the compound produced 0.218g of CO2 and 0.0310g of H2O. In another experiment, 0.103g of the compound produced 0.0230g of NH3. What is the ?empirical formula
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You have 279mL of a 1.25M potassium chloride solution, but you need to make .50M potassium chloride solution. How many milliliters of water must you add to the original 1.25M solution to make the .50M potassium chloride solution?
A 5.0 dm3 sample of oxygen at a pressure of 200kPa and 2.0dm3 sample of nitrogen at a pressure of 500kPa are introduced into a 2.5dm3 vessel. What is the total pressure in the vessel?
When ammonia is burned in oxygen, free nitrogen gas and water are produced. What volume of ammonia will react completely with 25.0 L of oxygen? what volume of nitrogen gas is formed.
How does an atomic absorption spectrometer find the concentration of a certain element in a sample? Please explain the step-by-step process in simple terms.
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