Calculating the energy in joules-calories
Calculate the energy in joules and calories lost when 10.0 {rm g} ethanol, {rm C_2H_5OH}, cools from 62.5^circ C to -46.0^circ C
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Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water? 2Na+2H2O-->2NaOH+H2
what is the freezing point of a solution of 1.17g of 1- naphthol, C10H8O dissolved in 2ml benzene at 20 degree centigrade? the density of benzene at 20 degree centigrade is 0.876g/mole. Kf for benzene is -5.12 degree centigrade/molality, and benze
What fact allows the separation of iron and aluminum from nickel and cobalt? What fact allows for the separation of iron from aluminum?
Calculate the theoretical yield of C2H5Cl when 124 g of C2H6 reacts with 219 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl
mixture of 100 mol containing 50 mol % n-pentane and 50 mol % n-heptane is distilled under differential conditions at 101.2 kPa until 40 mol is distilled. What is the average composition of the total vapor distilled and the composition of the liqu
Identify and provide three specific examples of foreign environmental uncontrollable forces that McDonald's faced in their efforts to future expand globally. Use specific examples from your selected articles to support your answer.
A charge of +9q is fixed to one corner of a square, while a charge of -6q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two emp
A horizontal ray of white light incident perpendicularly on the vertical face of a prism made of crown glass. The ray enters the prism, and part of the light undergoes refraction at the slanted face and emerges into the surrounding material.
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Evaluate the organization's access control policies and related operational practices by doing the following:
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