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In an air-conditioned room at 19.0 C, a spherical balloon had the diameter of 50.0 cm. When taken outside on a hot summer day, the balloon expanded to 51.0 cm in diameter. What was the temperature outside?
Write a mechanism for the base-catalyzed hydrolysis of methyl salicylate. 2.) Devise another route by which methyl salicylate can be converted to acetylsalicylic acid
The percentage of an additive of gasoline was measured six times with the following results: 0.13, 0.12, 0.16, 0.17, 0.20, 0.11%. Find the 90% confidence level interval
Excessive quantities of wash water are added to the CaC2O4*H2O precipitate. Will the mass of the CaC2O4*H2O be reported too high, too low, or unaffected. Explain
Calculate the catalytic efficiency of lysozyme (in units of M-1 s-1), in terms of the rate of encounter of enzyme with substrate. How does this value compare to the diffusion-limited value of k1 = 109 M-1 s-1?
Calculate the molar concentration of a solution if the absorbance (A) is 0.355, the molar absortivity (a) is 4.29 x10 to the neg 4 L/mol*cm and the path length (b) is 3.00 cm
Predict the order of elution for benzoic acid and methyl orange in normal phase column chromatography using polar SiO2 as the stationary phase. In other words, which compound should come off the column first? The structures of benzoic acid and met..
What would be the product if a 1:1 mole ratio of benzaldehyde to acetone was used in an Aldol condensation?
In fractional distillation and steam distillation, we used tap water. What would happen if you inversed the water in and water out of the condenser
The procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is concentrated (19M ) NaOH solution. How many mL of water are needed to make 500mL of a 3.0M NaOH
A different nonscientist is going to make a new semiconductor III-V solid. But for reasons to discussed later, the scientist is going to use tow different elements for the III-atom part,
Calcium supplements commonly contain calcium ions in the form of calium carbonate (CaCO3). If one calcium supplement weights 600. mg, how many moles of calcium are contained in each pill
Find the expression for the reversible pressure-volume work of an isothermal van der Waals gas with a constant number of moles (integrate the expression fully from Vi to Vf) (b) One mole of a gas at 300 K is compressed isothermally and reversibly ..
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