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An airplane flying directly eastward at a constant speed travels 300 km in 2.0 h.
(a) What is the average velocity of the plane?
(b) What is its instantaneous velocity?
An element X forms compounds XI3 and XCl3. The first compound reacts with chlorine according to the following reaction: 2XI3 + 3Cl2?2XCl3 + 3I2
Based on your observations, what might have happened if you had not followed these instructions? Might this also have affected your percent yield? Explain.
Another beverage that uses FD&C Yellow #5 (M = 534.36 g/mol) for its distinctive color is Gatorade Lemon-Lime. The literature value of the molar absorptivity of FD&C Yellow #5 at 430 nm is E = 2.43 x 10^4 M^-1 cm^-1.
What is the expected boiling point of a solution prepared by dissolving 5.83 g of sodium iodide (NaI) in 59.2 g of water (H20)? For water, Tb = 100.00 degrees Celsius and Kb = 0.512 degrees Celsius m-1. The answer is 100.675. Please show a step by..
How many grams of MgCl2 are needed to make a 3.35% w/v solution having a total volume of 500.0 mL
If equal volumes of 0.1 M HCl and 0.2 M TES (base form) are mixed together, what will be the pH of the resulting solution? (The pKa of TES is 7.55.)
what mass of the hydrate could be recovered from the solution? when separated from a h2o solution copper sulphate forms
Problem- The following reaction has been reported in the chemical literature and proceeds cleanly in good yield. Identify the principal organic product. A) Benzene ring with OH groups on carbons 1 & 4 and a Cl group on carbon 2.
There is a horizontal line representing the separation point between the liquid phase and the gas phase in the middle of the container. Use Xs to represent the 25 molecules in each container and place those molecules where you would expect them to..
the solubility of o2 g in water at 25degc is 3.16 ml100 g h2o when the gas pressure is maintained at 1 atm. what
suppose your assignment were to prepare the glaser type product of a mixed reaction of phenyl acetylene and propyne.
A 20.0-mL sample of 0.25 M HNO3 is titrated with 0.15 M Na OH. What is the pH of the solution after 30.0 mL of NaOH have been added to the acid?
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