Which acid is the best choice to create a buffer with ph= 7.64?
a. nitrous acid (hno2),pka=3.34
b. hypochlorous acid (hclo),pka=7.54
c. acetic acid (hch3co2),pka=4.76
d. chlorous acid (hclo2),pka=1.95

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .