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-A student started the purification and recrystallization with a crude sample of adipic acid that weighed 20.421 g and obtained a yield of pure adipic acid of 73.5% How much pure adipic acid was recovered? (Please Explain)
-The melting point of Jonny's adipic acid was 15 degrees below the literature value. Was his adipic acid pure or impure?What do you think Jonny may have done wrong?
Use the periodic table to write electron configurations for each of the following elements. Represent core electrons with the symbol of the previous noble gas in brackets. S Ge Zr Sb
the rate constant for a certain reaction is 8.60times10-3 . if the initial reactant concentration was 0.850 what will
the ground water in pherric new mexico contains 1.80 mgl of iron as fe3. what ph is required to precipitate all but
a very dilute solution contains 116 mg of fructose m180.16 gmol in 1.00 liters of solution. it is placed in a
Determine the final temperature of the system if a 325 g block of Al (Cs=0.903 J/g degree C) initially at 85 degree C is dropped into 325 g of water initially at 15.0 degree C.
How many moles of O are needed to combine with 0.289 mole of C to form the following compounds, CO and CO2
If the concentration of lead iodide [PbI2] in a saturated aqueous solution is 1.5 x 10-3 M, what is the Ksp of PbI2
when separated from a water solution cuso4 forms a hydrate with 5 water molecules per formula unit. if 36 g of
A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units
The gas-phase dipole moment of the hydroxyl radical
A 100.0-L flask contains a mixture of NO2 gas and CO gas. If the concentration of NO2 is 5.5 × 105 ppm, and the total pressure is 790 torr, what is the partial pressure of CO in the flask?
Evaluate reversibility of a process where an ideal monoatomic gas is first slowly compressed 10-fold by a gradually increasing external pressure (gas remains in thermal equilibrium with the surroundings)
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