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A 25ml solution of quinine was titrated with 1.00 M hydrochloric acid, HCl. It was found that the solution contained 0.125 moles of quinine. What was the pH of the solution after 50 ml of the HCl solution were added? Quinine is monobasic with pKb=5.10.
A copper refinery produces a copper ingot weighing 131 lb. If the copper is drawn into wire whose diameter is 8.25 mm, how many feet of copper can be obtained from the ingot
determine the solubility of iron in mgl as fe in a solution in equilibrium with feoh3 s ironiii hydroxide 10-2m total
a 5.00-ml aliquot of a solution that contains 2.79 ppmfe2 is treated with an appropriate excess of thiocyanate and
biphenyl c12h10 is a nonvolatile nonionizing solute that is soluble in benzene c6h6. at 25 degc the vapor pressure of
Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32 P, how many grams will remain after 112 days?
Question- The Lyman series of spectral lines for hydrogen occurs in the non-visible regions of the electromagnetic spectrum. They arise from transitions from higher energy levels down to n=1. Calculate wavelength (nm) of the lowest energy spectral ..
Problem- The endpoint of your titration occurs after you add 13.26mL of 0.5643 M NaOH. The linear regression line for your pH vs. NaOH graph is Y=0.13x+4.16. What is the pKa of your acid
Give a definition of the ?outer. Explain what structural features of the solvent contribute to the value of this term.
what is the lewis structure and molecular geometry of pernitrate and carbonate ion?
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
How much heat is required to vaporize 25.0g of water at 100C. The heat of vaporization of water at 100C is 40.7 kJ/mole.
A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO..
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