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Problem: A sample of steam with a mass of 0.508 g at a temperature of 100°C condenses into an insulated container holding 4.45 g of water at 5.0 °C. (For water, ΔH°vap=40.7 kJ/mol and Cwater=4.18 J/(g⋅°C).)
Assuming that no heat is lost to the surroundings, what is the final temperature of the mixture?
An important characteristic in the mechanism of this reaction is the formation of a tetrahedral intermediate which is the result of a. the alcohol attacking the 2-phenylacetic acid with the subsequent loss of a proton.
Which compound will be most reactive in an E2 reaction with NaOEt in EtOH? a) (CH3)3CF b) (CH3)3CCl c) (CH3)3CBr d) (CH3)3CI *Any explanation as to why the answer is correct would be helpful:)
How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from
A solution is known to contain Bi3+ ion or Cd2+ ion or both. Describe the test(s) that could be used to seperate and identify these ions. Describe the results you would expect to see for each ion, if that ion were present.
Question- The infrared spectra of benzoin and benzaldehyde are given in this experiment. Interpret the principal peaks in the spectra.
How old is a bottle of wine if the tritium (3H) content is 25% that of a new wine? The half-life of tritium is 12.5 years.
What is the purpose of running both Dalton Vll mixed markers and lanes with individual markers on SDS-PAGE?
How much heat is required to warm 225 g of ice from -44.1°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Question- An ionic compound forms when calcium (Z = 20) reacts with iodine (Z = 53). If a sample of the compound contains 1.3X 10^19 calcium ions, how many iodide ions does it contain
The mass of the bob is made to rotate in a horizontal circle of radius 0.4metres and whose center is vertically below the point of suspension.
The half life of Uranium-238 is 4.5 x 10^9 yr. A sample of rock of mass 1.6 g is found to produce 29 dis/s. Assuming all the radioactivity is due to Uranium 238, find the percent by mass of Uranium 238 in the rock.
For each of these three chemicals, state how the "parity rule" is (or is not) obeyed by the MS data. If this question cannot be answered for a chemical, state briefly why not (for example, what additional data would be needed or why the situation ..
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