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Calculating Value of Kb in Substances and pKb for BaseCodeine (C18H15NO3) is a weak organic base. A 5.0x10-3 solution of codeine has a pH of 9.95. Calculate the value of Kb for this substance. What is the pKb for this base?
Determine water solubility under normal atmospheric conditions (assuming that Carbon dioxide obeys Henry's law?)
Determine what is the final volume the gas occupies If the pressure of a gas inside the cylinder changes from 840.0 mmHg to 360.0 mmHg,?
How many grams of zinc metal will react completely with 8.2 liters of 3.5 M HCl? Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)
A balloon ?lled with helium gas has a volume of 434 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.
what is the correct expression for computing the volume of gas at STP and determine What is the mass percent yield from 1.79 g of Sb in excess S, is obtained if 1.14 g of Sb 2 S 3 ?
Solutions of sodium carbonate and silver (I) nitrate react to form solid silver (I) carbonate and a solution of sodium nitrate.
Li is in row 2 of the periodic table, Na is in row 3, and K is in row 4. How do their row numbers affect how their electron configurations end.
A pound of coffee beans yields 30 cups of coffee (4 cups = 1 q). How many milliliters of coffee can be obtained from 1 g of coffee beans.
4.5 L of Mg(OH)2 solution was titrated with 5.03 mL of 0.200 M HCl. Calculate the the molarity of Mg(OH)2 solution and the ksp.
What is the calculated value of the partial pressure(atm) of O2 in acid mine water of pH 1.700, in which [Fe3+] = [Fe2+]?
Phosphorus-32 has a half-life of 14.0days . Starting with 6.00g of 32p , how many grams of phosphorous will remain after 42.0days.
An aerosol spray can with a volume of 350. mL contains 2.29 g of propane gas (C3H8) as a propellant. (a) If the can is at 25°C, what is the pressure in the can? (b) What volume would the propane occupy at STP?
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