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You dissolve 93.24 g of an unknown in 1000g of water and obtain deltaTf=2.34 degrees c. What is the molecular weight of the unknown if Kf=1.86 degrees c*kg/mol?
the smell of ripe raspberries is due to4-p-hydroxyphenyl-2-butanone which has the empirical formulac5h6o. to find its
if 1.500 g of solute that has a molar mass of 125.0 g were dissolved in 35.00 g of camphor what would be the resulting
Use the Henderson-Hasselbach equation to calculate the pH of an acetate buffer in which the acetate concentration [CH3COO-] is three times greater than the acetic acid [CH3COOH] with a pKa of 4.76.
a motor attached to a 120 v60 hz power line draws an 7.80 a current. its average energy dissipation is 770 w.how much
Using a spectrometer and beers law to determine % of copper in a brass sample: what equations are used to determine all.
More strong base is added until the equivalence point is reached. What is the pH of this solution at the equivalence point if the total volume is 38.0
Find the molar mass of the compound and determine its molecular formula. What is the Lewis formula of the compund? predict the electonic and molecular geometry using the VSEPR model.
provide the newman projections across the c2-c3 bonds for the major conformers after drawing the zig-zag structures of
For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt.
What is the estimated mass of the osmotic pressure of a polymer dissolved in benzene to give 200 mL of solution is 1.50 kPa at 25 degrees C.
Show the stereochemistry of the products you would expect when (2S,3S)-2,3-epoxypentane undergoes acid catalyzed hydrolosis.
Calculate the pH of the solution formed by the addition of 55.5 mL of 0.100 M NaOH to 49.2 mL of 0.100 M H3PO4.
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