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Problem- Halfway through his Conservation of Mass experiment, a Joe E. Cool realized that he forgot to weigh his crucible after heating it. Short of starting over, what can Joe do to ensure accurate results? Be specific and detailed in your answer.
Joe burned his magnesium sample and obtained a light gray product. Since his crucible looked dirty anyway Joe skipped the step of heating to constant mass, weighed the gray sample, and calculated the mass of the product. Was his resulting mass likely to be high or low?
Your answer must be supported by illustrations, Please answer with work shown to receive points:
Draw all stereoisomers of 2-bromo-4-chloropentane. Use bold and hashed wedges to show the stereochemistry.
The molar heats of sublimation and fusion of iodine are 62.3 kJ/mol and15.3 kJ/mol, respectively. Calculate the molar heat of vaporization of liquid iodine.
One of the nuclides in spent nuclear fuel is U-253, an alpha emitter with a half life of 703 million years. How long will it take for the amount U-235 to reach 14.0 percent of its initial amount? T=?
describe in detail reagent solvent you can employ to prepare OTTO DIELS and KURT ALDER reaction. Note that this reaction involves the 1-4- addition of a conjugated diene in S-cis, S-trans conformation to an alkene in which two new sigma bond are f..
55.0 calories of heat are added to a small lead block. If the temperature of the lead increases from 27.0°C to 59.2°C, what must be the mass of the lead block?
Container A holds 727 mL of ideal gas at 2.20 atm. Container B holds 134 mL of ideal gas at 4.20 atm. If the gases are allowed to mix together
what are some differences between the titration curves of strong acid and strong base versus weak acid and strong base?
Alkali metals are extremely reactive with water. Suppose I give you a 55.50 g chunk of cesium and you throw it into a lake. When it reacts with water to form cesium hydroxide and hydrogen gas
The reaction vessel is charged initially with SO3(g) and NO(g), each at a partial pressure of 0.500 atm. In the space below, enter the equilibrium the partial pressure of SO2(g) in units of atm
an adiabatic air compressor is to be powered by an adiabatic steam turbine. steam enters the turbine at 12.5 mpa and
100.0 ml of .100 M acetic Acid is placed in a flask and is titrated with .100 M sodium hydroxide. An Appropriate indicator is used. Ka for acetic acid is 1.7x10^-5. Calculate the pH in the flask at the following points of titration.
Problem- Rank the following hydrocarbons in order of increasing octane number. a = heptane b = cyclohexane c = toluene d = isooctane Select one:
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