Answers by Boris02W830

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What is the pH of a solution that has a hydrogen ion concentration of 0.001 M? Use a pH meter to determine the pH value of the solution.

answered 5 days ago in Analytical Chemistry

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A 0.25 mol/L solution of ethanoic acid (CH3COOH) is mixed with a 0.40 mol/L solution of sodium acetate (CH3COONa). The equilibrium constant for the reaction CH3COOH + NaCH3COO ⇌ CH3COONa + H2O is 1.8 x 10^-5. What is the concentration of CH3COONa at equilibrium?

answered Jan 22 in Chemical equilibrium

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The enzyme pepsin works only in the presence of what?

answered Jan 2 in Science

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What are the three main types of rocks?

answered Dec 28, 2024 in Science

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