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Some people tend to use the terms effectiveness and efficiency interchangeably, though we've seen they are different concepts. But is there any relationship at all between them? Can a firm be effective but inefficient? Very efficient but essentially ineffective? Both? Neither?
A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2gives 22.7 g of a mixture of CO2 and SO2
Assume that sucrose is a molecular solid and does not ionize when it dissolves in water. Kf values are given here.
it was determined in a calorimetry experiment that a piece of copper metal of 92.0 gram released 1860 joules of heat to
Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let's see how many different examples we..
What is the time (in hours) when the C4H6 concentration reaches a value of 1.80×10-3 M?
Which of the following factors affect the resolution (separation) of two compounds: (A) nature of the stationary phase; (B) eluent composition; (C) amount of sorbent used; (D) color of compounds being separated?
Explain when a solution containing 1.4g of Ba(NO3)2 and 2.4g of NH2SO3H is boiled, a precipitate forms. The precipitate may be Ba(NH2SO3)2, BaSO4, or Ba(NH2)2. a) Compute the number of moles of each reactant. b) Find out the limiting reactant. c) ..
An enzyme with a Km= 2 x 10E-4 M for its substrate and a Vmax o 5.5 x 10E-5 moles per liter-min was assayed for its catalytic rate with its substrate present at 2 x 10E-4M. Calculate the anticipated initial rate under these conditions.
It is possible to write four resonance structures for the azide ion, N3-, all of which satisfy the octet rule (write them all). However, experiential evidence shows that the azide ion has linear shape, with equal nitrogen-nitrogen distances
The rate constant increases by a factor of 2.00 when the temperature is increased from 80 C to 115 C. estimate the arrhenius activation energy.
Hydrogen ion concentration in mixtures, Calculate the hydrogen ion concentration of the following mixtures. a. 25mL of 0.10M HClO4 and 25mL of 0.15M HClO2
in patients with glucose-6-phosphate dehydrogenase deficiency, rd blood cells are lysed while other cells remain intact.which statement best explains this: hemoglobin is a catalyst in the production of reactive oxygen species making RBCs especially..
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