The accuracy and precision of one of the three methods we used to determine the pKa for acetic acid depends primarily upon the accuracy and precision of pH probe and is independent of the actual concentrations of either the acetic acid solution or the sodium hydroxide solution. In fact, you do not need to know either one of these concentrations to use this method. For which one of the three methods is this true? Explain.

Which substance absorbs 58.16 kj of energy when 3.11 mol vaporizes? a)ch4 b)h2s c)co2 d)nacl

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

How do you lengthen a pattern piece? (family and consumer science, sewing)