How can ph stay approximately constant
How can pH stay approximately constant when strong base is added to a weak acid with some of its conjugate base present (in the 'buffer' region of the titration curve)
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At a certain temperature, hydrogen gas and iodine vapor react toproduce hydrogen iodide gas. Suppose HI(g) at 5.000 x10-1 atm, H2(g) at 1.000 x 10-2atm and I2(v) at 5.000 x 10-3 atm are mixed in a 5.000 liter flask.
A chemical engineer studying the properties of fuels placed2.366 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2gas. The bomb was immersed in 2.723 L of water and the reaction was initiated.
Consider a piston-cylinder assembly containing 0.14 kg of air initially at a pressure of 350 kPa. Sketch the process on a P-V diagram and calculate the amount of heat added during the process.
What test statistic need ot be applied for testing (gve the formula with listing conditions). What is your decision rule when Type 1 error is set at at 0.05?
At the end of the compression stroke the air is at 800 K and 4280 kPa absolute. What is the work done by the piston on the air during the compression stroke?
Suppose you were asked " what is the mass of a paper clip?"What is the appropriate statistical respond? Include information on variation.
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