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A constant electric current deposits 0.365 g of silver metal in 12,960 secs from a solution of silver nitrate. What is the current? What is the half reaction for the deposition of silver?... I figured out with the current will be, but if dont know how to figure out what the half reaction of deposition of silver is.
The vapor pressure of pure water at 25C is 23.8 torr. A solution is made by mixing 18.52g of an unknown non-ionic substance into 200.00g of water and the vapor pressure of the solution is found to be 23.3 torr. What is the molecular weight of the ..
Calculate the wavelength of a neutron that has a velocity of 250 cm/s.
3 moles of carbon dioxide gas expands reversibly in a piston-container from 20 L to 40 L in an isothermal process at 400 K. Calculate work, heat, change in internal energy and change in enthalpy, considering van der Waals behaviour. [a = 3.59 atm ..
Calculate the weight of water required to steam distill 500 mg of bromobenzene at 95 degree Celsius. The vapor pressure of water at this temperature is 640 torr; that of bromobenzene is 120 torr
Determine the temperature dependence of the diffustion limited rate constnt (kdiff proprotional T7/3 or so )
Stoichiometry limiting reagent: find the reagent in excess. then calculate the mass or volume of the products formed.
Identify which of the following statements are incorrect. If the statement is incorrect, rewrite it to be correct. a. Reactions are faster at higher temperature because activation energies are lower.
A lab bench has 3 one L stoppered flasks. Flask A contains one mole of NH3 gas. Flask B contains one mole of N2 gas & Flask C contains one mole of SO2 gas. All are at the same temperature.
What is the pH of buffer that consist of 0.20 M NaH2PO4 and 0.40 M Na2HPO4? Ka=6.2x10^-8
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 9,494kJ of heat is needed from the combustion, how much carbon (g) must be consumed? Enter your answer with three significa..
A 0.7120g specimen of iron ore was brought into solution and passed through a Jones reductor. titration of the Fe(II) produced required 39.21 mL of 0.02086 M KMnO4. express the results of this analysis in terms of (a) percent Fe and (b) percent Fe..
Combustion Analysis of Toluene, Combustion analysis of toluene, a compound containing carbon and hydrogen only, gives 5.86 mg carbon dioxide and 1.37 mg of water. What is its empirical formula?
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