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Type: Posts; User: jdziegler
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so does that mean you times the answer you get in the equation by 6.022 *10^23 moles?
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Im having trouble calculating it up to mole per photons or mole of photons..
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An argon ion laser emits a beautiful blue beam with a wavelength of 488.0 nm. What is the energy per mole of photons emitted?
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Calculate the wavelengths (in nm) of the visible lines in the line spectrum of hydrogen using the Rydberg equation (nf = 2; ni = 3, 4, 5, and 6).
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What is the electron configuration of Na+?
What is the electron configuration of Li+?
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Why can one readily burn oneself caramelizing sugar or making sugar-based candies?
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What is the role of fluorescein and rhodamine b? Describe in one word.
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Im so lost here! I don't understand what you are saying can you please explain this to me!
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How do I compare the specific heats of the metals with their atomic weights. Should I see any trends?
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Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 C and 50 g of water at 80 C. After adding the two portions of water into your calorimeter setup...
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A neon sign is made of glass tubing whose inside diameter is 2.0 cm and length of 4.0 m. If the sign contains neon at a pressure of 1.5 torr at temperature of 35C, how many grams of neon are in the...
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Lead nitrate reacts with sodium sulfide ion to make lead sulfide and sodium nitrate. How much lead sulfide can one make from 15.05g lead nitrate and 10.02 g sodium sulfide?
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Hexane (C6H14) reacts completely with oxygen (O2) to make carbon dixode and water. Balance the equation. How many mole of oxygen are consumed per mole of hexane burned?
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How many grams of potassium dichromate should be added to a 50 mL flask to prepare a 0.02505 M solution when the flask is diluted to the water with water?
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Using a pipet, 10 mL of a 0.1005 M HCl solution was paced in a 50 mL volumetric flask and the flask was filled to the mark with water. What is the concentration of the new solution?
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Look up the atmospheric (or barometric) pressure in your area in the newspaper, on television, or through another news outlet. What are the units used? Convert to mm Hg. Convert to mm H2O.
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If the column of water in the water barometer rose to a height of 33 feet, what would the atmospheric pressure be in mm Hg?
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Should atmospheric pressure increase or decrease as one goes from the beach to the mountains? Explain.
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After 0.6523 g of CoCl2 * 6H20 is heated, the residue has a mass of 0.3423 g. Calculate the % H2O in the hydrate.
What was the actual number of moles of water per formula unit CoCl2?
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After 0.6523 g of is heated, the residue has a mass of 0.3423 g. Calculate the % H2O in the hydrate.
What was the actual number of moles of water per formula unit CoCl2?
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If a hydrate of the formula MClY*H20 decomposes when heated to produce HCl, what change would you expect to occur when a piece of blue litmus paper is held in the path of vapor released? Explain.
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Why is Cobalt II Chloride (CoCl2) often used in hygrometers?
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