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Problem 3.51A rigid vessel, filled to one-half its volume with liquid nitrogen at its normal boiling point, is allowed to warm to25oC. Explain what pressure is developed? The molar volume of liquid nitrogen at its normal boiling point is 34.7cm3mol-1.
How many liters of hydrogen gas are collected over water at 20°C and 725 mmHg when 0.75 g lithium reacts with water? Aqueous lithium hydroxide also forms.
aniline, an organic amine, C6H5NH2, a weak base with Kb of 4.0x10^-10, reacts with water to form its conjugate acid, C6H5NH3^+. write the equation and the base dissociation constant for aniline.
A 25ml sample of solution containing thallium(I) (TI) was treated with K2CrO4 to perticipate thallium chromate. The solid TI2CrO4 was filtered, washed to remove excess chromate, and then dissolved in dilute H2SO4
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
Silver metal has a density of 10.5 g/cm3. how many silver atoms are in a cube that measures 5.00cm on each side
Fusion of boric acid with sodium oxide forms a borate salt, Na2BO7. Without writing complete equations, find the mass (in grams) of B5H9 required to form 156g of the borate salt by this reaction sequence.
A stock solution is prepared by adding 35 mL of 1.5 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 30 mL of the stock solution
A 0.32-mol amount of NH3 is dissolved in 0.47L of a 0.38 M silver nitrate solution. Calculate the equilibrium concentration of Ag(NH3)2+ and Ag+ and NH3
What is the final pH of the solution when 15.0 mL of 0.121 mol/L NaOH(aq) and 35.0 mL of 0.181 mol/L HNO2(aq) are mixed? Assume the temperature is 25oC.
In a proton nmr spectrum a methylene peak appeared at delta = 2.1 ppm when a simple 60 MHz spectrometer was used. At what frequency would this peak appear if the scale were instead given in Hertz
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
write net equations for the acid-base reactions that occur when the given aqueous solutions are mixed. Determine the value of the equilibrium constant. Use single arrows for the extensive reactions (K>1000) but double arrows otherwise.
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