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At a given location the ground-level temperature is 70°F. At an elevation of 2000 f t, the temperature of the air is 65°F.
(a) What is the maximum mixing depth, in feet, when the normal maximum surface temperature for that time is 90°F?
(b) What if it was 84°F?
25 mL of an unknown Ba(OH)2 solution require 20 mL of a .150M HCl solution to neutralize it: Ba(OH)2 (aq)+ 2HCl (aq) -> 2H2O (l) + BaCl2 (aq) 1) How many moles of HCl were used in the titration?
A nugget of pure gold of 4.80 grams absorbed heat of 283 Joules. if the temperature was 23.0°C initially then determine what was the final temperature of the Au gold it is given that the specific heat of Au= 0.129 J/(g·°C).
Calculate the volumes of weak acid and its conjugate base needed to make the pH buffer solution below. 500mL of pH buffer solution, pH=7.50, 0.50 Sodium bicarbonate.
When the sample burned, the products were CO2 gas and H2O vapor. The CO2 was collected and its pressure found to be 25.2kPa in the same volume and at the same temperature as the original mixture. What % of original mixture was methane
Assume that the system benzene and chlorobenze at 100 degree celcius obeys Raoult's law. for a binary mixture with an overall mole fraction Z=.30 determine
A solution is made by dissolving 0.150 moles of benzoic acid (ka=6.5*10^-5) and 0.300 moles of sodium benzoate in enough water to give exactly 1.00 L of solution what is the solution pH
A 0.100- sample of your favorite candy is burned in a calorimeter that contains 1.00 of water initially at 24.0. After the candy is burned, the water temperature is 34.0.
Lipophilicity (logD, logP) OptiSolv, LogD1to10, pKaDay, BindingPack, ChemStab
An object made of aluminum has a mass of 8.37g. When it was placed in a graduated cylinder containing 20.0mL of water, the water level rose to 23.1mL. Calculate the density and specific gravity of the object.
positrons cannot penetrate matter more than a few atomic diameters but positron emission of radiotracers can be
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change)What mass of Pb3(PO4)2 will form
The two alkenes below react with HI at different rates. Draw the structural formula of the MAJOR product formed by the alkene having the HIGHER reaction rate
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