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An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed to prepare 1.7 L of a solution that is 97 ppm in KNO3?
calculate the pH of a solution contaning 0.2m acetic acid (pka=4.7) and 0.1 m sodium acetate? a. write the equation ph=pka+log [A-]/[HA]
hydrogen bromide can be produced by a reaction among bromine sulfer dioxide and water as follows...nbspnbsps02 br2 h2o
Use reduction-potential values to explain which halides can be oxidized by Fe3+ or by MnO4- in acidic solution?
Calculate the mass of Nitrogen (N2) that will react completely with 6.00g of Hydrogen (H2) to form Ammonia, via the reaction: N2+3H2=2NH3
Write balanced total and net ionic equations for its reaction with aqueous NaOH. (Type your answer using the format (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients. Type the cation befo..
A certain reaction has an activation energy of 63.62 kJ/mol. At what Kelvin temperature will the reaction proceed 4.50 times faster than it did at 347 K
He was surprised that most of the white solid melted sharply between 121 and 122 C but that a small amount remained unmelted even at temperatures above 200 C. Explain this behavior.
Compute the molality of a solution containing 327 g glucose(C6H12O6) dissolved in 1.52 L of water. (Assume a density of 1.00 g/mL for water.)
List all the covalent and non-covalent interactions that exist between amino acid residues in a polypeptide (besides the peptide bonds).
The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 × 102 g of sucrose (C12H22O11, molar mass = 342 g/mol) and 3.50 × 102 g water? 1. 0.51 mmHg 2. 16.0 mmHg 3. 17.0 mmHg 4. 18.0 ..
What volume (in milliliters) of 0.190 M NaOH should be added to a 0.135 L solution of 0.022 M glycine hydrochloride
A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 1.56 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in Volt..
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