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Explain what the final concentration of a NaOH solution is when 67mL of .75M NaPH is poured into a volumetric flask and diluted to 5.0L with water
Liquid mixtures of sodium and potassium are used in some nuclear reactors as coolants that can survive the intense radiation inside reactor cores. Calculate the energy required as heat to melt 250 kg of sodium metal at 371 K.
Metal oxides like lime (CaO) are called basic anhydrides. explain why this is so.show the reaction that takes place when rain falls on lime
Upon reaction with excess sulfamic acid, HSO3NH2, a 0.121g sample of a mixture of sodium nitrite, NaNO2, and sodium chloride, NaCl, produced 28.3 mL of nitrogen gas collected over water at 25.3 degrees Celsius and at a barometric pressure of 738 m..
a. calculate the energy change in j associated with an electron transition from the n 3 to n 2 in a bohr
Explain the particle in a one dimensional box is sometimes used as a model for pi electrons in a conjugated bond system.
A carbon-hydrogen compound is burned in an excess of oxygen to give 1.76g of carbon dioxide and 0.900g of water as the products of combustion. What is the empirical formula of the organic compound
When measuring the specific heat of a metal, why is it best to use the minimum amount of water needed to cove the metal. (hint: consider the size of the temperature change)
Calculate the pH of a buffer solution made by mixing 44 ml of a 0.06 M ammonia solution with 60 ml of a 0.10 M ammonium nitrate solution. Give the pH to two decimal places.
State A chunk of dry ice CO2(s), weighing 4.5g is sealed inside a 2 L soda bottle initially containing 1 bar of air. Explain what is the total pressure in the bottle after the dry ice sublimes as well as comes to 298.15 K
Calculate the amount of water that must be supplied to a heat exchanger that cools 100 kg/hr of tomato paste from 90C to 20C. The water enters the heat exchanger at a temperature of 8oC
Pick any two normalized eigenfunctions of the particle in the box Hamiltonian. Show by direct integration that these functions are orthogonal functions.
Discuss the Hazard classification of areas; class, group, division with respect to flammable gas atmosphere in a chemical process industry and Outline the Principles and standards of intrinsic safety, techniques in the design, use of intrinsically..
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