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Calculate the molarity of a solution of glycerol made by dissolving 67.000 mL glycerol at 15 C in enough water to make 320.00 mL of solution.
Find the molarity of a Ca(OH)2 solution,given that 388 mL of it is neutralized in a titration by 117 mL of 0.0058 M HNO3.
To cool a volume of water from 176° K to 100° K, 7.9 x 104 J of heat energy must be removed. What is the volume of water that was cooled?
A rock contain 3.2 grams of a radioactive isotope, uranium-235, . Determine what was the original amount of uranium-235 in the rock If the rock has undergone 2.75 half lives, and how old is the rock?
A mixture of Helium, Neon, and Nitrogen gases has a pressure of 1.348 atm. Determine what is the partial pressure of N2 in the mixture If the pressures of Helium and Neon are 0.124 atm and 0.996 atm, respectively.
determine the variation of temperature within the wall and the value of temperature at x=0.1m.
determine how do you know if there must be a precipitate or not and Show whether or not a precipitate will form if The Ksp of PbI2 =9.8×10-9
If 157 of wet is collected over water at 24 degrees C and a barometric pressure of 737 Torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 Torr)
element z has two isotopes: one has mass number of 19.0 amu is 55.0% abundant,and the isotope with mass number 21.0 amu is 45.0% abundant. what is the average atomic mass for element Z?
Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4Cl with 100.0 mL of 0.20 M NH3. The Kb for NH3 is 1.8 x 10-5.
what vibrational bands would be prominent in the Ir spectra of 3-aminoacetophenone and 1-(3nitrophenyl) ethanol?at approximately what frequency
The density of osmium is 22.57g/cm^3 what volume will be occupied by 4.06 kg of osmium
Kp for the reaction of SO2(g) with O2 to produce SO3(g) is 3 × 1024 . Calculate Kc for this equilibrium at 25ºC. (The relevant reaction is 2SO2(g) + O2(g) 2SO3(g).)
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