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What is the cathode pH in Co/Co2+(1.00 M)//H1+(x M), H2(1.0 atm)/Pt if E = 0.01 V? Give the pH to 0.01.
Given that Delta H (fusion) of water is 6025 J/mol, Cp(ice) = 37.7 J/K mol, and Cp(water,liquid) = 75.3 J/K mol, calculate Delta G (in J) for the freezing of 54 moles of water at 1 atm pressure and the constant temperature T =13.1 C.
a 251 ml sample of oxygen is collected over water at 25 deg c and 760 torr pressure. if the vapor pressure of water as
an ethanol-water mixture is to be flash distilled at 1 atm. if the feed is 25 mole % ethanol, what are the liquid and vapor compositions if
One mole of water vapor is expanded reversibly from 5L to 15L at a temperature of 800K. Calculate q, w, deltaE for this process assuming that water behaves as a van der Waals gas,
A student takes a mixture of sugar (C6H12O6), diamond powder (C) and BaCO3, separates the mixtures and recovers 1.75g sugar, 0.86g diamond powder and 2.29g BaCO3(s). Student % recovery was 96.46%, less than the initial amount of mixture they start..
ethylene glycol antifreeze has a density of 1.11 gcm3.a. what is the mass in grams of 410 ml of ethylene glycol?b. what
How many grams of KOH must be added to .500L of the buffer (206mL of 0.453M HCL and .500L of 0.400M sodium acetate)to change the pH(4.79) by .135 units?
The "roasting" of 48.7 g of ZnS at constant pressure gives off 220. kJ of heat. Calculate the DH for this reaction. 2ZnS(s) + 3O2(g) ® 2ZnO(s) + 2SO2(g)
What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?
When 25.0 mL of 0.400 M H2SO4 and 50.0 mL of 0.850 M H2SO4 are mixed, what is the molarity of sulfuric acid in the final solution?
If the observed wind speed by an anemometer is 5 m/s, what is the wind speed at 100 m height if the value of the index p = 0.15
The equilibrium constant Kc for this reaction is greater than one. based on this information, which of the following statements is correct. A- anion is a stronger acid than HB.
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