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Predict the reactivity of benzaldehyde compared to benzene in a Friedel-Crafts reaction. Benzaldehyde is _______________ reactive than benzene in Friedel-Crafts reactions.
Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C).
Propose a mechanism to account for the formation of a cyclic acetal from 4-hydroxypentanal and one equivalent of methanol
Dissolve Ca(OH)2(s) into a 100 mL solution containing 2.00g of dissolved CaCl2. The satureated Ca(OH)2 solution has an equilibrium pH of 11.68. Determine the molar solubility and the Ksp for Ca(OH)2 from this single pH measurement.
Why must all F- solutions be measured and kept in plastic ware rather than glassware. Why do you measure the most dilute solutions first when using ISE. Why do we not use TISAB when determining the selectivity coefficient.
Why are the Kr---Kr and intermolecular Br---Br distances in the solid form of the two elements practically identical. How would you expect the Br---Br distances in solid CBr4 to be related to the above distances
for the neutralization reaction involving HCl and Mg(OH)2, how many liters of 0.60 M HCl are needed to react with 45 g of a 2.5 M Mg(OH)2 solution? (density= 1.3 g/mL)
Find the entropy change of the system and of the surroundings if 3.000mole of water freezes reversibly at 1.000atm. the freezing temperature is 0.00C at this pressure, and the specific enthalpy change of fusion is equal to 79.7cal/gm at this tempe..
At least how many standard solutions would you need to make a calibration graph, assuming that the graph is expected to be a straight line
Which substance would provide the best protection for an iron pipe buried in the ground? for a lead pipe. Ag, Au, Cu, Mg, and Zn
As conjugated dyes get longer, two effects compete. The Equation, ?= 8mcL^2/h(2ni+1) indicates that as ni increases, the absorption wavelength should decrease, but as L increases, the absorption wavelength should increase. Which one wins and why?
It takes 12 hours for half of the He in a container to leak out. If the same container is refilled with Ne, how long will it take for half of the Ne to leak out
Identify the conjugate base of HSO4 - in the reaction H2PO4- + HSO4- ? H3PO4 + SO42- A) H2PO4- B) H2SO4 C) H2O D) H3PO4 E) SO42-
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