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If, in a certain experiment, over a specific time period, 0.0039 mol PH3 is consumed in a 1.8-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
What volume of Maker's Mark was consumed if the individual was drinking Maker's Mark (130 proof),?
An aqueous solution contains 12.5% NaCl by mass. What mass of water (in grams)is contained in 2.5L of the vapor above this solution at 55 celcius? the vaor pressure of pure water at 55 celcius is 118 torr.
Steam distillation may be used to separate a mixture of p-nitrophenol and o-nitrophenol.
When aqueous solutions of lead( II) ion are treated with potassium chromate solution, a bright yellow precipitate of lead( II) chromate, PbCrO4, forms
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Cu(s) | Cu2+(aq, 0.0032 M) || Cu2+(aq, 4.48 M) | Cu(s)
A sample of nitrogen gas in a 4.4-L container at a temperature of 35°C exerts a pressure of 3.7 atm. Calculate the number of moles of gas in the sample.
Explain why magnetic metals are found only among the 3d and 4f elements. Why are Sc and Ti, which are also 3d elements, diamagnetic?
An aerosol can has a gas pressure of 133 kPa at 293 K. Calculate the pressure when the can is heated to 460 K.
At 0.500 atm and 15.0 degrees celcius a sample of gas occupies 120 L. What volume does sample gas occupy at 0.850 atm and 10.0 degrees celcius?
How much heat is required to vaporize 351 g of liquid ethanol at its boiling point.
How many grams of solid sodium phosphate, Na3PO4, are needed to prepare exactly 250ml of a 0.500M Na+ solution?
0.113 m aqueous solution of a weak acid, HA, is 2.23% ionized. At what temperature does it freeze? Kf for water = 1.86o C/m.
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