Metamucil is a brand name for psyllium. It is a bulk forming laxative that can be found in over-the-counter and veterinarian prescription... Metamucil Dosage for Cats; At-Home Cat Hair Ball Relief; Cats & Psyllium; Comments You May Also Like.
The sign of the heat of formation matters. Using hess's law: 2(-238kJ) + 4(242kJ) + 2(393)= -1279=Heat of reaction Heat of combustion of methanol is just the heat of reaction divided by the molar coefficient for methanol in the chemical equation so about -639.5kJ/mol. In acuality it is somewhere near -727kJ/mol.
The first chemical reaction done in the production of biodiesel is the dissolving of sodium hydroxide in methanol. The Heat of Solution of NaOH in methanol makes the solution quite hot. Some plastic containers are softened by the heat, so that has to be avoided.