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A 48.30 mL aliquot from a 0.480 L solution that contains 0.360 g of MnSO4 (Fw = 151.00 g/mol) required 41.8 mL of an EDTA solution to reach the end point in a titration. What mass (in milligrams) of CaCO3 (FW = 100.09 g/mol) will react with 1.85 mL of the EDTA solution?
A room of volume of 2 cubic meters is initially at 19 C and 101 kPa. A block of dry ice (solid carbon dioxide) is dropped into the room and then the room is sealed (air tight)
What is the pH of a solution that is 0.75 M in sodium acetate and 0.50M in acetic acid? (Ka for acetic acid is 1.85 x 10-5).
What is the final temperature of the water and pieces of metal?
Which of the following will not have ionic bonds?
A 125 ml sample of a solution that is 2.6x10^-3M in AgNO3 is mixed with a 230 ml sample of a solution that is 0.10M in NaCN. After the solution reaches equilibrium, what concentration of Ag+ remains?
If a sample containing 2.01 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
The instruction booklet for your pressure cooker indicates that its highest setting is 12.5 psi . You know that standard atmospheric pressure is 14.7psi
Explain how a change in the amount of a product causes a shift in equilibrium?
A sample of gas originally at 37.2oC and 1.25 atm pressure in a 3.4 L container is allowed to expand until the pressure is 0.73 atm and the temperature is 14.9oC.
25.00 mL of 0.25 M formic acid is titrated with 25.00 mL of .2500 M NaOh. What is the pH at the equivalence point?
A hydrocarbon undergoes complete combustion to form 6.9 g CO2 and 2.8 g H2O. What is the empirical formula for the hydrocarbon?
At 25 degree celcius, the density of a 50 percent by mass ethanol/water solution is 0.914 g per subic centimetre. Given that the partial molar volume of water in the solution is 17.4 cubic centimeter per mol.
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