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2-Methylhexane demonstrate an intense peak in the mass spectrum at m/z = 43. Offer a likely structure for this fragment.
solid silicon and solid magnesium chloride form when silicon tetrachloride gas reacts with magnesium metal. write a
How will that change in temperature affect the rate of diffusion of molecules within the cytoplasm of the muscle cells. Why.
how many grams of dry nh4cl need to be added to 2.30 l of a 0.100 m solution of ammonianh3 to prepare a buffer solution
What is a good solvent substitute for ethyl acetate between diethyl ether, octane, octene, octyne, and acetone?
The mass of 322 mL of hydrogen gas at 4.0 atm and -73°C is 1.21 grams. What is the density of hydrogen gas at STP?
a 45-g piece of ice at 0 degrees C is added to a sample of water at 9 degrees C. All of the ice melts and the temperature of the water decreases to 0 degrees C. How many gram sof water were in the sample?
how many milliliters of 0.100 m naohaq would be needed to completely neutralizenbsp 50.0 milliliters of 0.300 m
Did an experiment where we extracted the caffeine in 1 bag of tea. We added the bag of tea leaves to the solution where the sodium carbonate solution. Explain what the purpose of adding the sodium carbonate was.
a compound contains only c h and o. to analyze the compound you determine its empirical formula by analysis for c and h
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
Galactose and glucose compose lactose, which is referred to as milk sugar. What is the molecular formula of galactose if the empirical formula is CH2O
copper in salt water near the discharge of a sewage treatment plantis determined by first seperating and concentrating
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