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What volume (mL) of the solvent H2O should be added to 136 mL of the solute CH3OH to make a solution that is 1.12 parts per hundred by mass CH3OH? (in ML)
Acetylene gas (ethyne; HC?CH) burns in an oxyacetylene torch to produce carbon dioxide and water vapor, and the heat needed to weld metals. The heat of reaction for the combustion of acetylene is -1259 kJ/mol. (a) Calculate the C?C bond energy, and..
What is the pH of a 0.5901 M solution of NaA. Note: HA is a weak acid with Ka = 6.144x10-8.
Which of the following statements correctly describe the energy and energy changes in a system? Select all that apply. 1. Energy is defined as the ability to do work.
Write the electron configuration and shell diagram for each of the following elements: a) magnesium b) arsenic c) iodine
how many moles of glucose, C6H12O6 can be burned when 60.0 mol of O2 is available?
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 6.26
Important information about Quant problems, Calculate pFe2+ at Ve in the titration of 25.00 mL of 0.02026 M EDTA by 0.03855 M Fe2+ at pH
25 ml of naoh 0.16 m is added to 50 ml of 0.1 m hcl. what is the ph of the final solution? what is the concentration of
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) In a certain experiment, 4.30 g of NH3 reacts with 7.48 g of O2. Which is the limiting reactant?
what is the class and subclass of fes cuso4 rarr feso4aq cus ? i believe it is double replacement but would it be
Suppose the pH of the water is 4.59 and that the concentration of iron(II) in the water is 7.99x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
Calculate the hydroxide ion concentration in a solution that is 0.068 M morphine C17H19O3N and 0.045 M morphine hydrochloride C17H20O3NCl. Kb of C17H19O3N is 1.6 x 10^-6
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