What was concentration of compound in original undiluted
A 15 mL sample of a solution of Pb(ClO3)2 was diluted with water to 19 mL. A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
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What is the lewis dot structure for IF6 (iodine hexaflouride)
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 1.8 multiplied by 10^-5) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
How many grams of ice at -20.5 degrees C can be completely converted to liquid at 16.3 degrees C if the available heat for this process is 4.11×103 kJ?
A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
You add 1.00 g of a solid weak acid to 100 mL of water, then titrate with 0.100 M NaOH solution. The pH at the half equivalence point is 4.22. Which of the acids in the Weak Acid Equilibrium Constant table most likely matches your unknown?
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
Write the balanced half-reaction that occurs at the anode. How many grams of barium metal can be produced by supplying 0.50 A for 30 min?
Estimate the diffusivity of the same solute in problem # 2 through cylindrical pores of a membrane that is 28 nm in diameter. Assume that the molecule enters the pores of the membrane from a well-stirred bulk solution.
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