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A gas with an initial volume of 24.0 L at a pressure of 565 mmHg is compressed by a pressure increase of 0.25 Pa. What is the final volume (L) of the gas, assuming the temperature does not change?
The concentration which remains after 20 minutes is 80 mg/L. Determine the reaction order and the rate constant (with appropriate units).
Given that there are 1.8 x 10^20 moles of diatomic molecules present, how many kilograms of ice (at the North and South Poles) will this quantity of heat melt at 0°C. (The molar heat of fusion of ice is 6.01 kJ/mol.) find in Kg
calculate the mass of MgCO3 precipitated by mixing 10.0 mL of a 0.200 M Na2CO3 solution with 5.0 mL of a 0.0450 M Mg(NO3)2
Which separation technique do you think will be fastest, flash chromatography or chromatotron. Explain.
When would formation of a derivative be a necessary step in this experiment?
How many moles of gas are present after the reaction has come to completion. What is the mol fraction of Ar after the reaction has come to completion
At a constant pressure of 1.50 atm what is the enthalpy change delta H for a reaction where the internal eneergy change delta E is 58.0 kJ
acalculate the equilibrium constant for the following reaction at ph7.0 and 25 degc using the indicated
When 5.454 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 17.11 grams of CO2 and 7.006 grams of H2O were produced.
exactly 56 grams of sodium sulfate 51 grams of potassium iodide and 48 grams of barium perchlorate were dissolved in
Problem- Find the pH and pKa at the half equivalence point when 25mL of .1M acetic acid is titrated by .1M NaOH and the volume of NaOH at the equivalence point and half equivalence point is 20.9mL and 10.45mL respectively.
A chemist studying the properties of photo- graphic emulsions needed to prepare 500 mL of 0.18 M AgNO3 (aq). What mass of silver nitrate must be placed into a 500 mL volumetric ?ask, dissolved, and diluted to the mark with water? Answer in units o..
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