Atomic absorption spectrometer
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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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?
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.
One hundred moles per minute of a 50 mol% n-hexane/50 mol% n-pentane liquid mixture at 85 oC and 6 atm is fed to an evaporator.
Control of Rocket Car. A rocket car of unit mass is free to move along a straight, ?at, and frictionless track. The car has a rocket engine mounted on it, and the rocket can be ?red at any time t to exert a force u(t) on the car to propel it forwa
one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87
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SmartCup also detects volume and will give information relevant to percentage of daily consumption. Other metrics the cup is able to test include whether