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What is the mass of 1 mol of atoms for an element?
Compound A had IR peaks at 3060, 3000-2850, 2750, 1715 cm^-1. It reacted with BH4- then H+ to form Compound B which had 1H NMR peaks of 7.2 to 7.4 (garbage, 5), 3.65(doublet, 2), 2.9 (sextet,1), 1.7 (singlet, 1) and 1.22 (doublet, 3). What are com..
Helium gas is contained in a pressure vessel of volume V=10m3. Determine the mass (in kg) of helium in the tank if the temperature is 20°C and the pressure is 4 bar. Use the ideal gas law. For Helium, M=4.003 kg/kmol.
The major product of the acid-catalyzed dehydration of of neopentyl alcohol (2,2-dimethyl-1-propanl) has a different carbon skeleton than that of the starting alcohol. suggest a structure for this alkene, and propse a reasonable mechanism for its ..
Although aluminium chloride is ionic in the solid state it is molecular in the gaseous state. write the lewis structure, prepare a VSEPR sketch, describe the geometry, prepare a VB sketch, and desribe the bonding in gaseous AlCl3
What ions and/or molecules are present in relatively large proportions in a solution of a soluble ionic compound NaCl (aq)
the resulting acid dichloride is reacted with 20mL butyl amine (density=0.74 g/mL). After work up and recrystallization, 12.5 g of N,N'-dibutyl adipamide is obtained. What is the limiting reagent and percent yield
chloride solution and it turned out to be 8.35g, what is the percentage composition of the iron (III) chloride solution?
The heat capacity of a calorimeter is found to be 5.68 kJ°C-1. While a1.652-g sample of glucose, C6H12O6, is burned in the calorimeter, the temperature of the calorimeter increases from24.56°C to 29.10°C. Compute the ΔH for the following reaction
In which of the following equilibria would the concentrations of the products be increased if the volume of the system were decreased at constant temperature
You have a sugar solution (solution A) with concentration x. You pour 1/4 of this solution into a beaker as well as add an equivalent volume of water (solution B) Explain what is the ratio of sugar in solutions a and b
The sample is titrated to the phenolphthalein endpoint with 15.17 mL of a sodium hydroxide solution. What is the molar concentration of the NaOH solution
0.46mol of argon gas is admitted to an evacuated 30cm3 container at 60c. the gas then undergoes an isochoric heating to
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