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1.0 M HC2H3O2, and 1.0M NH3.
Calculate the concentration of HC2H3O2 or NH3 in each of the solutions you measured. By how many units did the pH of a solution of a weak base or acid change when it was diluted by a factor of ten?
Calculate the approximate length of PVA strand assming that each monomer unit contributes two carbon atom diameters to the length
A beaker contains 100 grams of 0.50 M NaCl. If you transfer 50 grams of the solution to anouther beaker, what is the molarity of the solution remaining in the first beaker?
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced.
Calculate the molar solubility of the following compounds from the Ksp values given, Zn(OH)2
A mixture of 1.10 g H2 and 1.51 g He is placed in a 1.00 L container at 25°C. Calculate the partial pressure of each gas and the total pressure of PHe.
A gas mixture with a total pressure of 765 contains each of the following gases at the indicated partial pressures: , 118 ; , 229 ; and , 187 . The mixture also contains helium gas. What is the partial pressure of helium gas.
The pressure in an automobile tire is 1.83 atm at 26.0°C. What will be the pressure if the temperature warms up to 37.0°C.
.1500g of an unknown sample was passed through a column of Amberlite-IR-200(+) resin and titrated with .2050M NaOH. If 9.75mL of titrant was required to reach phenolphthlein endpoint,
What is the percent ionization of a 0.177 M solution of this acid?
what is the chemical formula of a gas if it has a pressure of 680 torr and a density of 1.60 g/L at 27 degrees C.
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. The piston is pushed down with a steady force measured to be 11 N.
an unknown gas has a density of 1.60 g/L at 1.00 atm and 30.5 degrees celsius what is the molar mass of the gas.
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