What is the molarity of a koh solution prepared
What is the molarity of a KOH solution prepared by dissolving1.350g KOH in enough water to make a solution with a total volumeof 250.0 mL?
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Calculate the average H-S bond enthalpy in H2S(g) given that the standard enthalpies of formation of H2S(g), H(g) and S(g) are-20.1, 218.0, and 223.0 kJ/mol, respectively.
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Vinegar is a dilute solution of acetic acid. A 15.64 mLsample of vinegar with a density of 1.06g/mL requires 24.80 mL of 0.469 N KOH for titration. What is the percent by mass of acetic acid in vinegar.
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If a chemical reaction: A + B → C + D isendothermic, what is the sign of ΔH for the reaction? Would the temperature recorded in the calormeter well for such a reaction increase or decrease? Explain answer.
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