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Problem- Calculate the ratio of the masses of the buffer components required to make the buffer. a buffer with pH = 9.00 = ?? NH3/NH4Cl.
I desire to know how this is done please illustrate all steps in detail
Draw the Lewis dot structure of ethanol. Estimate the bond angles and the hybrid orbitals found for each carbon and for the oxygen.
one of the steps in the commercial process for converting ammonia to nitric acid involves the conversion of nh3 to
Question- How many possible trinucleotides are there that contain a uracil base (U), and two cytosine bases (C)
Consider a sample of helium gas at 28 C with a volume of 3.80 L at a pressure of 3.15 atm. The gas expands to a volume of 9.50 L and the gas is heated to 43 C
If the total mass of the mixture is 452.2 g, what masses of CaCl2 and water should be used?
The frequency factor as well as the activation energy for a chemical reaction are A=8.0x10-12 cm3/(molecule*s) and Ea=15.7 kJ/mol at 309 K, respectively. Find out the rate constant for this reaction at 309 K. Give answer in cm3/(molecule*s)
Both the meta- and para- forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phenylene diamine, and why is the ortho-form of the diami..
if the pressure inside of the eudiometer is equalized to barometric pressure (0.987 atm), what is the pressure of the oxygen gas in the eudiometer?
Two scientists are experimenting with pure samples of isotope X, a highly radioactive substance. The first scientist has a sample with a mass of 20 grams.
An isolated tube contains 1 mole of argon at 5atm on one side of a movable barrier held in place by a pin. On the other side of the barrier is 0.2 mole of neon at 0.5atm, the the whole system is at 298K.
Explain what is the pH of 355.0mL of an aqueous solution containing 0.607 g of the strong acid trifluoromethane sulfuric acid (CF3SO3H)
when 45.0 grams of C2H6 are completely combusted, 60 grams of water are produced. Is the ethane pure?
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