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(a) How many moles of acetic anhydride were represented by the 6.00mL (density=1.08 g/mL) used in the synthesis? (b) How many excess moles of acetic anhydride were used- over and above the amount needed to react with 3.00 g of salicylic acid?
Henry's constant for CO in water at 25 degrees Celsius is 9.71 x 10^-4 mol/L atom. How many grams of CO will dissolve in 1.00 L of water at a CO partial pressure of 2.75 atm
A room temperature aqueous solution is 0.10 M in zinc acetate, 0.50 M in strontium acetate and 15.2 M in nickel (II) acetate. At what concentration of carbonate
A 1.630 g sample of naphthalene, C10H8(s), is completely burned in a bomb calorimeter assembly and a temperature increase of 8.44°C is noted.
A mixture consisting of 2.50×10!3 g of O2, 3.51×10!3 mol of N2, 4.67×1020 molecules of CO are placed in a vessel with a volume of 4.65 L at 15.4°C.
Inexperienced workers commonly make mistakes in TLC experiments. Give the result in the following case: * You spotted 1/2 cm from the bottom edge and immersed the plate in 1 cm depth of solvent.
Calculate E for the cell. Assume all the H+ ions come from the first dissociation of H2SO4, which is complete.
What are the relative percentages of hydrogen cyanide (HCN) and cyanide ion in a dilute aqueous solution
A sample of gas is collected over water at a temperature of 35.0C when the barometric pressure reading is 763 torr. What is the partial pressure of the dry gas, given PH2O =42.2 torr?
What is the final pH if .2 mol HCL is added to .5L of a buffer solution formulated using .28 M NH3 and .22 M NH4CL?
Solution 1.0C 1xF 1.8F 32F2 to carry out the desired conversion. When the absolute temperature is 400 K, what is the Fahrenheit temperature?
Calculate the ph at the equivalence point in the titration of 40.0 mL of 0.165 M of methylamine (kb = 4.4 x 10^-4) with 0.280 M HCl
You are expected to design a car that works with photovoltaic panels. Assume that the driver is 75kg and the expected speed is 50km/hr.
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