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How many chiral ketones are there that have the molecular formula C6H12O?
Describe how would your result be affected if you mistook a negative Starch-iodide test and stopped adding the NaOCl solution too early?
Which of the following solutions will have the lowest freezing point? Can you explain which one with full solution, and explain why.
While 8.7 g of toluene is mixed with 12 g of pure nitric acid, only 9.9 g of trinitrotoluene (TNT) is improved from the mixture when it is separated from other undesired byproducts. Explain what is the percent yield of the synthesis
a sealed balloon is filled with 1.30 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
consider the titration of 100.0 ml of 0.200 m acetic acid ka 1.8 10-5 by 0.100 m koh. calculate the ph of the
Problem- Biphenyl is often formed as a yellow colored side product in this Grignard reaction. How and why does it form? How might you distinguish biphenyl from the triphenylmethanol product by IR
Which of the following is true about the photoelectric effect. a) The number of electrons emitted increases with intensity of light, regardless of the frequency. b) The number of electrons emitted increases with the intensity of light
Radioactive element X decays to element Y with decay constant -0.3. Y decays to stable element Z with decay constant -0.2. Explain what is the system of differential equations for the amounts x(t), y(t), z(t) of the elements X, Y, Z respectively, ..
Compute the enthalpy of helium at this temperature and pressure and the rate at which enthalpy is transported by a stream of helium at 300k and 1atm whose molecular flow rate is 250 (Kmol/hour). R=0.082 (LATM/MolK). R=8.314(J/KMol). Compute the ma..
Problem- In an experiment that takes 9 minutes and 10 seconds to complete at a current of 0.8 amperes, a volume of 32.3 mL of hydrogen gas is produced. Calculate z for the electrolysis of water. ROUND to the nearest whole number.
which gas sample contains the largest number of mole?
If 100 g of Mg reacts with excess HCl, what volume of hydrogen gas at 25 degrees C and 1.0 atm pressure will be produced. balanced equation
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