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You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6
The solubility of barium fluoride, BaF2, is 3.15 x 10-3 M at 25 °C. Calculate the solubility product, Ksp, of both compounds.
This reaction's half life is 35.0 at 680C. If you had 520 mmHg of phosphihne in an 8.00 L flask, how long does it take for the pressure in the flask to rise to standard pressure
what mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at
An unkown metal crytallizes in one of the three cubic lattices.The edge length of the unit cell is 408pm.Given that the atomic radius of the metal is 144pm and the density of the solid is 19.3g/cm-3, what is the atomic symbol of the metal? a=2R a=..
To do so she places 100.0g of water at 58.60C into the calorimeter which already contains 100.0g of water at 19.30C. The final temperature of the water in the calorimeter is 38.70C. What is the heat capacity of the calorimeter
Thermal decomposition of KClO3(s) yields KCl(s) and O2(g). When 4.289 g of KClO3 (0.03500 mol) undergo this reaction, how many grams of oxygen are produced
A 0.00400 mole sample of 2-chloro-2-methylpropane is added to 500 mL of water, and the mixture is stirred until the pH levels off. What is the pH of the solution.
A 1.090 g piece of aluminum is placed into a solution containing 5.10 g of copper (II) nitrate. How many grams of copper will be formed? This is a single replacement reaction.
In 50-75 words, write a paragraph to summarize why (chemical) engineers are needed to turn algae into fuels/chemicals/value added products.
a vertical cylinder contains v moles of an ideal gas and is closed offby a piston of mass m and area a. the
Balance the following half-reaction in base, using smallest whole number coefficients. What is the coefficient for OH- in the balanced equation?
The difference between the energy of the photons and the kinetic energy of the electrons corresponds to the energy needed to remove the electrons (that is, the ionization energy). Suppose that a PES experiment is performed in which mercury vapor i..
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