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A particular compound has a heat of vaporization of 28600 J/mol. At 281 K it has a vapor pressure of 121 mmHg. What is its vapor pressure at 306 K?
The slope of the calibration curve was 18.67 response unit per uM thocyanate. What is the minimum detectable concentration of thiocyanate for this method? And what is the limit of quanititation for thiocyanate by this method
You need to produce a buffer solution that has a pH of 5.02. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? ..
If you know the balanced equtaion of a reation and the cange in concentration in one of the products or reactents, you can determinethe change in concentation of all the other products an reactants.
Calculate the molar concentration of a potassium chloride solution if 2.4 liters contains 2.00 moles of KCl. Calculate the molar concentration of 15 frams of KCl in 1.5 liters of solution.
calculate the escape velocity the minimum initial velocity that will take an object to infinity from the surface of a
Write a balanced, net ionic equation for the precipitation reaction of cacl2 and cs3po4 in an aquaeous solution.
When 0.0500 mol of HCl is reacted with 0.0500 mol of NaOH in 50.0 mL of water, the temperature of the water increases by 13.7°C. Calculate the heat of the reaction for the following thermochemical equation
What will be the molarity of a compound (1 litre) with a molecular weight of 169 and purity as 41%.
Write the correct equilibrium constant expression for each reaction and indicate its numerical value
At 25 ºC, the vapor pressure of water is 23.8 torr. What is the vapor pressure of a solution prepared by dissolving 97.0 g of C6H12O6 (a nonvolatile solute) in 170 g of water.
A Friede-Craft reaction. The reactants are tert butyl chloride and FeCl3. what would the arrow pushing mechanism and the product look like
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
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