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If a pure R isomer has a specific rotation of -138.0°, and a sample contains 67.0% of the R isomer and 33.0% of its enantiomer, what is the observed specific rotation of the mixture?
Kp for the reaction of SO2(g) with O2 to produce SO3(g) is 3 × 1024 . Calculate Kc for this equilibrium at 25ºC. (The relevant reaction is 2SO2(g) + O2(g) 2SO3(g).)
Determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of 102cm cubed at 97 degrees Celsius. The pressure of the chloroform is 728 mmHg.
the atomic masses of 6Li and 7 Li are 6.0151 amu and 7.0160 amu. Calculate the neutral abundance of each isotope. The average atomic mass of Li is 6.941 amu
A solution of malonic acid, H2C3H2O4 was standardized by titration w.1000M NaOH solution. If 20.76 mL of the NaOH solution were required to neutralize completely 13.15 mL of the malonic acid solution
Calculate the total volume of gas (at 133 degrees C and 758 mmHg) produced by the complete decomposition of 1.56 kg of ammonium nitrate.
How many grams of H2O (g) are theoretically produced from 1026.9 g of sucrose, C12H22O11 (g), and an excess amount of oxygen? C12H22O11 (g) + O2 (g) → CO2 (g) + H2O (g) (unbalanced)
.134 mole of KCl and .212 mole of CaCl2 were dissolved in water, calculate total number of Cl ions in the solution
Create an outline of a procedure to use to create a kinetic plot of concentration vs time for the bleaching of a food dye. The outline must contain no more than 10 steps. Make sure to include the glassware and amounts of solutions you expect to us..
How much would an empty volumetric flask, (weighing 27.16 grams, has a volume of 100.4 cm3 ) weigh when filled with bromine, an element that has a density of 3.1028 g/cm3.
Use the PhET to complete the sentences describing how electronegativity is related to bond dipole experienced by the molecule.
6Na+Fe2O3->3Na2O+ 2Fe. If you are provided 20.0 moles of sodium & excess iron (III) oxide, how many moles of iron would form?
a separatory funnel is used in this method of separating liquids . f. liquid is allowed to evaporate, leaving the solid behind c. element
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