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The solubility of KNO3 is 155g per 100g of water at 75C and 38.0g at 25C. What mass of KNO3 will crystallize out of the solution if exactly 100g of its saturated solution at 75C is cooled to 25C? Is there anyone that can provide a template to work from in order to solve this problem?
a particular coal contains 2.5 sulfur by mass. when this coal is burned the sulfur is converted into sulfur dioxide
vinegar is a 5.0 solution by weight of acetic acid ch3co2hin water. given that the ph for acetic acid is 2.41 the
Keep in mind that it will be too thick and greasy to insert in a capillary tube. Also, remember that the melting point of vegetable oil is well below room temperature.
What is the absolute error in pKa according to pKa from the mid-point pH value? The true value is given in # (5) (9) What is the relative % error in pKa according to pKa from the mid-point pH value?
The density of helium gas at 273K and 1.00 atm is 1.76E-4 g/mL. What is the volume (in L) of a balloon containing 9.24 g of helium under the same conditions?
the equilibrium constant kp for the following reaction is 9.4 at 500.0 degrees c. a mixture in a container at this
Environmental magazine about the success of global initiatives in solving environmental concerns, using the Montreal Protocol and ozone depletion as a focus.
Calculate the molarity of your unknown, assuming it is monoprotic acid or monobasic base. Show all calculations for one titration with good precision including units and correct number of significant figures.
A bottle of nail polish remover contains 182 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788mL.
Benkart's Tie Store has fixed costs of $180,000. Tires sell for $75 each and have a unit variable cost of $30. What is Benkart's break-even point in units?
Why is it more difficult to precipitate cupric acetate (verdigris) than cupric carbonate hydroxide (malachite)
a metal weighing 50.0g absorbs 220.0 j of heat when its temperature increases by 120.0 degrees celsius. what is the
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