This page should not be printed c127e3p1f99 Anonymous access to the webmaster to send a message concerning computer related errors in these questions is available here. H changes sign when the reaction is reversed.
H is directly proportional to the amound of reactants.
H for a reaction carried out at constant pressure is equal to the heat flow of the reaction. H if inversely proportional to the amount of products. In determining the molar mass of an unknown acid, HX, by titration, one can use NaOH as the base. However, one must first standardize the NaOH solution, and this is usually done by titrating the basic solution with a standard solution of a known acid such as HC . If the concentration of the standard HC solution was 0.1M but was mislabelled as 0.05M the calculated molar mass of the unknown acid will be too low by a factor of 2 the calculated molar mass of the unknown acid will be too high by a factor of 2 the error will be compensated for in the second titration and have no effect on the determination of the molar mass of the unknown acid cannot tell without more information Fillin, ungradeable on the World Wide Web Consider the quantum designation 2p.