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What is the solubility in pure water of Ba(IO3)2 in moles per liter at 15 ?C? [Ksp (15 ?C) = 2.0 x 10-10]
A. 7.1 x 10-6B. 3.7 x 10-4C. 1.5 x 10-4D. 5.8 x 10-4E. 1.4 x 10-5
Nitrogen and 20% of Oxygen, and that the pressure at sea level is 1.000 atmosphere, calculate the partial pressures of each gas and the total gas pressure in the middle of the stratosphere at 35.00km altitude, where T=240.0 K.
A solution contains some or all of the ions Cu^{2+}, Al^{3+}, K^+, Ca^{2+}, Ba^{2+}, Pb^{2+}, and {NH_4}^+. The following tests were performed, in order, on the solution
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. The piston is pushed down with a steady force measured to be 11 N.
What volume of a concentrated { HCl} solution, which is 36.0% { HCl} by mass and has a density of 1.179 {g/mL}, should be used to make 5.30L of an {HCl} solution with a {pH} of 1.7.
an ethylene gas torch reqires 3200 L of gas at 3.00 atm. what will be the pressure of the gas if ethylene is supplies by a 250. L tank?
How many grams of diphenyl (C 12H10) must be dissolved in 655 g of benzene to lower the freezing point by 3 .20ºC.
138g of K and 448g of I react completely to form KI. What mass of KI would have been produced if 138g of potassium and 41g of iodine has been used?
The water temperature rose to 27.9 °C. Calculate the molar heat capacity of the metal
If 3.98 g of copper was recovered and you started with 9.10 g of copper (II) chloride, then what is the percent yield of the reaction ?
Give the molecular formula of a hydrocarbon containing five carbon atom containing five carbon atoms that is (a.) an alkane, (b.) a cycloalkane, (c.) an alkene, (d.) an alkyne
Why do you suspect that 1-propanol is used as the reaction solvent (Base-Catalyzed Dehydrochlorination of 2-Chloro-2-methylbutane), rather than the more common ethanol
Assume that the maximum number of ATP's is produced (38). At pH 7, and in the presence of excess Mg2+
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