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A reaction takes place inside a test tube is the test tube part of the system or part of the surroundings
Why is the structure of FMN and Coenzyme Q important for the function of the electron transport chain
A gas mixture consists of 320mg methane, 175mg of argon, and 225mg of neon. The partial pressure of neon at 300K is 8.87kPa. Calculate (a) the volume and (b) the total pressure of the mixture.
The activation energy of an uncatalyzed reaction is 88kj/mol . The addition of a catalyst lowers the activation energy to 60kJ/mol . a. Assuming that the collision factor remains the same, by what factor will the catalyst increase the rate of the ..
A sample of iron was dissolved iin hydrochloric acid. The liberated hydrogen was collected by displacement of water. The hydrogen occupied 262 mL at 26 c.
Express the rate of the following reaction equation in terms of the rate of concentration change for each of the three species involved: 2NOCl (g) = 2NO (g) +Cl2 (g)
what is an element with seven electrons in the outer orbit called: metal, halogen, metalloid, noble gas, none of the above
A 20.00 mL solution of nitric acid, HNO3, required 25.7 mL of 0.1313 M NaOH to reach a bromthymol blue end point. What is the concentration of the nitric acid solution
The vapor above a mixture of pentane and hexane at room temperature contains 35.5 pentane by mass. What is the mass percent composition of the solution. Pure pentane and hexane have vapor pressures of 425 and 151 , respectively, at room temperatur..
1.ahow many joules of heat energy do you need to heat 200 mlof water from 20ordmc to 80ordmc? use 4.19 jgordmc forthe
Nitric oxides, NO and NO_2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO_2. The reaction is given by 2NO (g..
why is it easier to analyze a mixture of atomic species by absorption spectroscopy than it is to analyze a mixture of molecular species?
Calculate the mass of gasoline (in kg) needed to fill up a small tank which has a capacity of 3.0 L. Assume that the density of gasoline is 0.80 g/mL
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