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Why does the pink color of phenolphthalein fade away and is soda pop acidic? Why?
the freezing point of the solution is lowered by 5.71 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of menthol.
What is the silver ion concentration in a solution prepared by mixing 339 mL of 0.398 M silver nitrate with 405 mL of 0.591 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12
If Dan is working in the lab and measures the mass of an iron rod to be 1.25 g and the accepted value from the instructor was given as 1.30 g, what was dan's percent error
The empirical formula of a solid is AB2 and it dissolves to form the cation A2+ and the monoanion B-.Solid AB2 is added to water and allowed to reach equilibrium.
Rank the substituents shown below in order of Cahn-Ingold-Prelog priorities (1 = highest priority group, 4 = lowest priority group).
Draw the structure of the major organic product you would expect from the reaction of 1-bromopropane with NaCN.
What are the relative percentages of hydrogen cyanide (HCN) and cyanide ion in a dilute aqueous solution at pH
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
at a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
Calculate the expected theoretical yield of aspirin based on exactly 1 g of salicylic acid and 3.50 mL of acetic anhydride (density = 1.082 g mL-1).
A mixture initially contains A ,B ,C and in the following concentrations:[A] = 0.700 ,[B] = 1.35 , and [C] = 0.700 . The following reaction occurs and equilibrium is established:
Before the collision what is the complete Eigen-function of the molecule? assuming the surface is located at x=0, and V (x =0)=0 and tha tthe molecule is located at a position X>>0. which means the molecule can be treated as a free mass in the re..
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