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Depict Fisher projections for the following (a) (R)-2-chloropentane (b) (2R,3S)-2,3-dichlorobutane (c) (S)-2-Bromo-2-pentanol (d) (2S,3S)-3-bromo-2-butanol & (e) (S)-2-pentanol
A solution is prepared by dissolving 2.33g of C60 in 100.0g of toluene. Given that the vapor pressure of pure toluene is 5.00kPa at 30C what is the vapor pressure of toluene in the solution.
What strongest lines of the He+ spectrum occur at the following wavelengths:1) 127.57 nm 2) 164.12nm 3)25.64 nm. Calculate the transitions associated with these lines.
A gaseous gydrogem and carbon conaining compound is decomposed and found to contain 85.63% and 14.37% H by mass. the mass of 258mL of the gas, measured at STP, was ).646g. What is the molecular formula of the compound
How many grams of nickel(II) nitrate are needed to produce 49.8 g nickel(II) phosphate in the presence of excess sodium phosphate
At a certain temperature* (probably not 25 ºC), the solubility of silver sulfate, Ag2SO4, is 0.023 mol/L. Calculate its solubility product constant for this temperature.
2.00 x102 ml of .744 m hcl is mixed with 2.00 x 102 ml of .372 m baoh2. how many moles of water are produced in the
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl. Kb of CH3NH2 = 3.7 10-4.
a closed vessel contains water oil and air at room temp. if the system is synthesized by first adding the water and
A typical polyethylene bag from a grocery store weighs 12.4 g. How many molecules of ethylene, C2H4, must be polymerized to make such a bag
A solution with a pOH of 7.30 is expected to be a (weak, strong, acidic or basic. Calculate the OH- concentration of a solution that has a [H3O+] of 3.5 x 10-10 M
Complete and balance the equation for this reaction in basic solution. Phases are optional.
N2O3(g) N2O(g) + O2 (g) Kc= 4.00 at the same temperature. When 4.00 mol of N2O5(g) is heated in a 1.00-L reaction vessel to this temperature, the concentration of O2(g) at equilibrium is 4.50 mol/L
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