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Compute the pH of 0.010 M HCl in 0.040 M NaCl. (a) Ignoring activity coefficients. (b) With activity coefficients
Calculate the number of moles of CH3N=NCH3 that have reacted in a 1.00 L flask 0.0500 min after 4.00 g of CH3N=NCH3 is introduced. The molar mass of azomethane is 58.0824 g/mol.
Include activity coefficients in your solubility-product expression. The Ksp of Hg2I2 is 4.6× 10-29.
The student uses poor lab practice by writing down the mass of his unknown sample on a piece of paper towel and then copies down the value incorrectly onto his data page. The actual mass of the sample was 0.2145g. He mistakenly wrote down 0.1245g,..
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the weak acid HClO2 (aq) and the strong base NaOH (aq)
Do you use the same type of glassware when making solutions of varying molarity? Should you use a volumetric pipette or flask
calculate the molecular weight of urea 180 grams of whichdissolve in 1500 grams of water to produce a solution having
You have 500.0mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium acetate(CH3COONa). Explain what will the pH of this solution be after the addition of 20.0mL of 1.00 M NaOH solution
dust falls on chicago at a rate of 65mg m-2 day-1. major metallic elements in the dust include al mg cu zn mn and pb5.
Calcium reacts with iodine z=53. If a sample of the compound formed contains 7.4x10^21 calcium ions, how many iodine ions does it contain.
The Molecular Nature of Matter and Change problem 78p I am stuck on the standard heats of reactions. I do not know what those are, but they are crucial for the problem
how much energy heat is released when 0.9 moles of h2 reacts with 0.5 moles of cl2 to create hclg if the deltahrxn
It is the universal solvent d. it does not participate in the reaction e. it is necessary for the formation of the bromonium ion
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