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During a lab experiment, we were to determine the relative level of saturation by adding, drop by drop, a solution of bromine in cyclohexane to oil and a fat, individually. However, the color that is supposed to be retained due to unreacted bromine did not persist as it should have. It took a considerable amount of drops (around 300 or more) before we had to skip that portion of the experiment.
Considering that the oil and fat we used were both commercial grade (I do not remember the brands), how would I predict (mathematically?) the number of drops or volume of bromocyclohexane should have been needed?
A 95.0 gram piece of ice at 0.0 degrees celcius is added to a sample of water at 8.0 degrees celcius. All of the ice melts and the temperature of the water decreases to 0.0 degrees celcius. How many Kg of water were in the sample?
AgCl has a 78.1% ionic character and a diplole moment of 11.5D. what is the distance between the Ag and Cl atoms?
Explain the difference between the Bohr model for the hydrogen atom and the quantum-mechanical model.
Calculate the electrode potential of the following half cell if it was at standard conditions. Then recalculate how this changes using.
predict a shape of small organic molecules that could bind tightly with G4. Be sure to explain your reasoning in terms of the measured distances and discuss the likely intermolecular forces involved in the interaction.
What is the total number of moles of electrons transferred in this reaction: 2 C7H16O + 21 O2 = 16 H2O + 14 CO2? What is the oxidation and reduction pathway?
When SiO2 is heated to melting, it reacts with solid carbon to form liquid silicon and carbon monoxide gas. in an industrial preparation of silicon, 155.8 Kg of SiO2 reacts with 78.3 Kg of carbon to produce 66.1 Kg of silicon.
A glucose molecule is labeled at carbon-3 with 13C. How many turns of the citric acid cycle are required to remove the carbon as CO2?
If a person produces and exudes polyunsaturated oil from their skin, how does it ultimately make clothes smell bad, and how does baking soda remove the odor?
In the near future, the college will attempt to reduce the cost of chemicals used in campus laboratories. One option suggests the chemistry department use household chemicals instead of expensive laboratory grade materials were ever possible.
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate.
A beaker with 1.70×102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.20 mL of a 0.490 it M HCl solution to the beaker. How much wi..
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