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Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogen phosphate. Ka = 7.5 x 10^-3
How did you deduce which spot corresponded to 2-naphthol on yourTLC plate that analyzed the reaction mixture at 10, 30, and 60 minutes. Did your TLC analysisindicate the presence of any 2-naphthol remaining atthe end of the 60-minute reaction time..
a sealed balloon is filled with 1.00 l of helium at 23 degrees celsius and 1.00 atm. the baloon rises to a point in the
Determine what would be the concentration of the final solution If you take a ten mili litres portion of the stock solution and dilute it to a total volume of 0.250 Litres,?
Write the condensed electron configurations for the following atoms and indicate how many unpaired electrons each has (a)mg (b)ge (c)br (d)v (e)y (f)lu
If an automobile is able to travel 246 on 10.6 of gasoline, what is the gas mileage in ?
Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron.
At saturation, 3.0 x 10-9 moles of AlPO4 have dissolved in 2 L of water. What is Ksp for AlPO4 at this temperature?
a solution is prepared by adding 80.0 ml of 0.090 m hbr to 130.0 ml of 0.50 m hi. calculate the concentrations of all
What volume of a 0.750 M solution of hydrochloric acid can be prepared from the HCl produced by the reaction of 25.0 g of NaCl with an excess of sulfuric acid
Consider 1.00 L of air in a patient's lungs at 37.0 C and 1.00 atm pressure. What volume would this air occupy if it were at 25.0°C under a pressure of 5.00* 10-2 atm (a typical pressure in a compressed air cylinder)?
Write complete ionic equation to show the reaction of aqueous Hg2NO32 with aqueous sodium chloride to form solid Hg2Cl2 and aqueous sodium nitrate.
Find the number of moles of water that can be formed if you have 174 moles of hydrogen gas and 82 moles of oxygen gas.
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