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What happens to the kp in th reaction 2NOBr(g)<--->2NO+Br2...when temperature is increased?
Acetic acid solution is titrated with NaOH solution. What is the pH at half the euivalence point?
A patient needs 0.004g of a sulfa drug. There are 5.00mg tablets in stock. How many tablets should be given.
A gas is placed in 1.23 L sealed container at a pressure of 0.500 atm and a temperature of 23.0 C. The temperature of the container is increased to 100.0 C.
an unknown gas sample is collected in a 255 ml countainer at 25c and 755 mm hg. how many moles of gas are present?
linear polystyrene has phenyl groups that are attached to alternate not adjacent carbons of the polymer chain
What is the pH of a buffer that results when 0.50 mole of H3PO4 is mixed with 0.75 mole of NaOH and diluted with water to 1.00 L, The acid dissociation constants of phosphoric acid are Ka1 = 7.5 x 10-3, Ka2 = 6.2 x 10-8, and Ka3 = 3.6 x 10-13
Which instrument can be used to determine the total calcium in a small blood sample.suggest a second method suitable for determine the free calcium ions on a similar sample of bood.
A mixture of NaCl and NaBr has a mass of 2.00 and is found to contain 0.78 of Na. What is the Mass of NaBr in the mixture.
At 0.0C, if the volume of air is 1.8 mL and the pressure of the atmosphere that day is 665 mmHg, what is the number of moles of air?
What is the chlorine flow rate at the reactor pressure and temperature. (b) If the etching rate of silicon is 0.50 ?/min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
mixture of the same bromoalkanes, and they both undergo hydroboration/oxidation to give a mixture of the same alcohols. Determine What is the structure of B?
If [a = 2.84 (+/-) 0.02], [b = 5.02 (+/-) 0.04], [c = 21.71 (+/-) 0.06], and [d = 9.49 (+/-) 0.04], calculate the absolute uncertainty in y if y = (a+b)/(c-d).
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