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Calculate the mass defect of the fluorine nucleus19/9F . The mass of neutral is equal to 18.998403 atomic mass units. Calculate the binding energy Eb of the fluorine nucleus 19/9F . Calculate the binding energy per nucleon of the fluorine nucleus 19/9F
Suppose a 500 mL solution contains 0.50 millimoles of Co(NO3)2, 100.0 millimoles of NH3, and 175.0 millimoles of ethylenediamine. What is the concentration of Co 2+ (aq) in the solution?
a buffer is made by the process of titration in which an aqueous solution of naoh of a concentration of 10.0 m
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2 x10-5).
determine the final value of n in a hydrogen atom transmition if the electron starts in n2 and the atom absorbs a
Select all of the correct statements about reaction quotients and equilibrium constants from the choices below.
A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calcu late the mass of pure acetic acid in 480 mL of this solution at 20 C
How many grams of dry NH4Cl need to be added to 2.30L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.83? Kb for ammonia is 1.8 * times 10^-5
B. If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced. C. Express your answer using two significant figures. How many grams OF N2are produced in the detonation
What advantages and disadvantages exist for both organic and inorganic solar cells? Describe the main barriers or technical difficulties associated with each.
Explain why the boiling point of your cyclohexane: toluene mixture rose slowly throughout your simple distillation procedure. Explain this in terms of the temerature/composition diagram
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
an equimolar mixture of hydrogen and deuterium effuses through an orifice at a certain temperature. calculate the
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