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Compare and contrast the nitrogen requirements of microorganisms and higher forms of life, describing how their respective requirements are met
calculate the heat given off when 177 g of copper cools from 155.0 celsius to 23.0 celsius. the specific heat capacity
Both stopcocks are opened. The pressure throughout the system is 33.5 mmHg. How many moles of N2 are in the system? How many moles of CO2 are in the system?
what is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of v2o5 with 40.0 g of calcium
consider the following reaction. Mg+H3PO4 magnesium phosphate and hydrogen. what is the molecular formula for magnesium phosphate.
calculate the change in the entropy of the universe between the time that the contents of the glass enter the lake and when thermal equilibrium is subsequently restored. State any approximations made in your calculation.
Calculate the molality of a solution of NaCl if 4.0 kilograms of solution contains 32.0 moles of sodium chloride.
The gas in a piston (defined as the system) is warmed and absorbs 670 J of heat. The expansion performs 347 J of work on the surroundings. What is the Change in internal energy for the system?
Determine the value of x in Fe(CO)x if you combine 0.250 g of iron with CO and isolate 0.877 g Fe(CO)x.
A 15 L flask containing a sample of nitromethane is filled with O2 and the flask is heated to 100 celcius. At this temperture, and after the reaction is complete
If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced?
Write the structural formulas for the products that form when 1-butene reacts with each of the following reagents: a) HI b) H2, Pt c) Dilute H2SO4, warm d) Cold concentrated H2SO4 e) Cold concentrated H2SO4, then H2O and heat
what should the stock concentration of atp be so that if you pipette a 100 uL aliquot you will obtain a final concentration of 2mM in an assay volume of 3.0 mL
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