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If equal volumes of 0.1 M HCl and 0.2 M TRIS (base form) are mixed together,
what will be the pH of the resulting solution? (The pKa of TRIS is 8.30.)
Assuming 100% yield and additive volumes. What is the concentration of tin (IV) and tin (II) ions after reaction is complete
What is the coordination number of each sphere in a three-dimensional, close-packed array of equal-sized spheres
What is the molar concentration of Cl- in solution? What is the molar concentration of Na+ in solution. What is the molar concentration of OH- in solution
You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [Ka = 1.8 ´ 10-5]
Write a balanced net ionic equation for the reactions, if any, that occur between (a) FeS(s) and HBr(aq); (b) K2CO3(aq) and CuCl2(aq); (c) Fe(NO3)2(aq) and HCl(aq)
What role does potassium iodide play in the generation of oxygen. How does this differ from the role of sodium bicarbonate in the production of carbon dioxide
A 1L vessel at 0C contains .23 mol N2, 1.6 mol of H2 and1.9 mol CH4. Calculate the pressure of the mixture and the partial pressure of each constituent gas.
For H35Cl the internuclear distance is 0.1275 nm. Calculate the moment of inertia, I, and Calculate the energies of the first three rotational levels.
consider a solvent whose molecular weight is 100.0 amu and whosevapor pressure at 25degc is 25.00 mm hg. 100.0 g of a
Problem- A 1H NMR signal is observed at 206.0 Hz (downfield of TMS) on a 125-MHz instrument. What is the observed chemical shift in parts per million (ppm)
a 50.0 ml sample of vinegar density 1.06 gml was diluted to 500.0 ml.nbsp titration of a 50.0 ml aliquot of this
A stock solution is prepared by adding 20 mL of 1.31 M AlCl3 to enough water to make 74 mL. What is the Al3+ concentration of 45 mL of the stock solution?
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