How would you prepare a liter of carbonate buffer
How would you prepare a liter of "carbonate buffer" at a pH of10.10? you are provided with H2CO3, NaHCO3, and Na2CO3.
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If 3 mol of hydrogen is now added to the equilibrium miaxture , what is the new equilibrium concentration of ammonia ?
A boxer receives a horizontal blow to the head that topples him over. The force, of magnitude 1.35 x 103 N, is applied for 1.7 x 10-2 s at a point 1.67 m above the floor. The boxer has a moment of inertia of 79.2 kg · m2 for rotation about an
How much heat in kilojoules is evolved in converting 36.0 g steam at 180 degrees C. to ice at -60 degrees C. (heat capacity of steam is 1.184 J/g-c & ice is 2.09 J/g-c, the heat vaporization is 40.7 kj/mole and heat fusion is 6.02 kj/mole.)
How much ice in grams would have to melt to lower the temperature to 468 ml of water from 39 degrees C. to 2 degrees C. (Assume the density of water is 1.00 g/ml, the heat of fusion for water at 0 degrees C. is 6.02 kj/mole)
A proton has an initial speed of 4.9 x 105 m/s. (a) What potential difference is required to bring the proton to rest?
Radioactive iodine , 131I which is frequently used in tracer studies involving the thyroid gland, decays according to N= N0 (0.5) t/8 , where N0 is the initial dose and t is the time in days. Find the half life of 131I .
Electrolysis of molten MgCl2 is the finalproduction step in the isolation of magnesium from seawater.Assuming that 37.8 g Mg metal forms, calculate the following.
An archer puts a 0.30-kg arrow to the bowstring. An average force of 201 N is exerted to draw the string back 1.3 m. Assuming that all the energy goes into the arrow, with what speed does the arrow leave the bow?
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The Deaf President Now protest happened at Gallaudet University when a hearing candidate was chosen to be the president instead of a Deaf candidate.
Explain how federal employees are limited in their political activities. What acts limit political activity for federal employees
Look up the racial/ethnic demographics of the community you live in. I found mine on Wikipedia. Now look up the racial/ethnic demographics
The U.S.-Egypt relationship has long reflected a delicate balance between strategic interests and ethical considerations.
The U.S. response to Syria's civil war evolved significantly between 2011-2021. Initially focused on diplomatic pressure and humanitarian aid under Obama
The 2017-2021 "maximum pressure" campaign against Iran represented a significant shift in U.S. strategy. After withdrawing from the JCPOA in 2018
What is the first activity that How Acquisition workforce personnel conduct to identify and establish new international cooperative programs (cop)