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Question- The corona of the sun emits a spectral line at about 677 m due to the presence of an ionized 57Fe atom (molar mass of 0.0569 kg mol^-1). If the line has a width of 0.053 nm what is the temperature of the corona
I need proficient help in the following problems.
Calculate the pH of the following solution: A mixture of equal volumes of 0.35 M glycine and 0.55 M HCL.
a sample of 40.0 ml of .1 m acetic acid is titrated with .150 m naoh ka 1.8 x 10-5 what volume of naoh is used in the
A sample of a gas originally at 29°C and 1.25 atm pressure in a 3.0 L container is allowed to contract until the volume is 2.2 L and the temperature is 11°C.
How can one draw a best fit straight line on a temperature versus time graph to determine the temperature at which two phases (solid plus melting point) appear
what is the color of cocl2 (aq) solution at boiling water temperature? And in which direction did the equilibrium shift upon
What is the initial product at the cathode in the electrolysis of molten AlCl3. A) Al (s) B) Cl2 (g) C) AlCl2 (s) D) Al3+ (aq) E) Cl? (aq)
A 10.60 mL sample of sulfuric acid from an automobile battery requires 34.32 mL of 2.01 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? Sulfuric acid contains two acidic hydrogens.
Calculate the pH of each of the following strong acid solutions: 5.00 mL of 1.00 M HCl diluted to 0.500 L d) a mixture formed by adding 50.0 mL of 0.020 M HCL to 150 mL of 0.010 M HI
Pure acetic acid known as glacial acetic acid is a liquid with a density of 1.049g/mL at 25 degrees celicus. Calculate the molarity of a solution of acetic acid at 25 degrees celicus in enough water to make 250.0mL of solution.
A .464 g sample of a metal, M, reacts completely with sulfuric acid according to M+H2SO4 yields MSO4+H2. A Volume of 211 mL of H is collected over water, the water level in the collecting vessel is the same as the outside level.
Acetylene gas (ethyne; HC=CH) burns in an oxyacetylene torch to produce carbon dioxide and water vapor, and the heat needed to weld metals. The heat of reaction for the combustion of acetylene is -1259 kJ/mol. a) Calculate the C=C bond energy.
predict the products of the reaction of acetophenone with 1) NaBH4 then H3O+ 2)aqueous acidic CrO3 3)NH2OH 4)CH3MgBr, then H3O+ 5) CH3OH, H+ catalyst
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