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The Kw value decreases and temperature decreases. Is the auto ionization of water exothermic or endothermic
What is the molarity (M) of the concentrated HClO4 solution?
Explain the order of elution you would observe while performing gas chromatography during an elimination/dehydration process on 2-butanol. What property of the product molecules seems to be the most important in determining the relative retention ..
From the ln [reactant] as a function of temperature you can tell the reaction rate is first order if it is a linear curve ln[A]t = -kt + ln[A]o How is this equation derived
A solution of methylamine CH3NH2 has a pH of 10.64. How many grams of methylamine are there in 100.0 ml of solution
The organic solvent pyridine, C5H5N (aq) is a base with a strong irritating odor. Calculate the pH of a 0.300 M aqueous solution of PYRIDINe at 25 degrees Celcius.
State the advantage and disadvantage of a furnace compared with a flame in atomic absorption spectroscopy
The mass of a golf ball is 45.9 G . If it leaves the tee with a speed of 65.0 M/S, what is its corresponding wavelength
the vapor pressure of nitrogen at several different temperatures is shown below.temperature k pressure torr65 130.570
Assuming a quantum requirement for photosynthesis of 8 (8 photons), calculate a thermodynamic efficiency in percent under standard conditions for the conversion of carbon dioxide to 3-phosphogylcerate if the wavelength of light used in 400 nm.
Find the volume (mL) and pH of 0.0588 M KOH needed to reach the equivalence point(s) in titrations of the following. (a) 20.8 mL of 0.0376 M HNO2 (b) 14.8 mL of 0.104 M H2CO3 (two equivalence points so both the first and second volumes and pHs are re..
Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?
how many moles of HCl are required to make 15.00mL of an aqueous 2.500 molar HCl solution
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