The molar mass of an element or molecule is the sum of the total mass in grams of all the atoms that make up a mole of a particular molecule. A mole is a unit of measurement that helps compare particles of any given substance and its mass....
Find the net charge of CH2CH2COOH. Determine the oxidation number (not total charge) on each atom in the following formulas: A) MnO_(4)^(1-) B) PbO2 Write so the charges are equal : Li+ and OH- Write so the charges are equal: Ca2+ and O2- ...
What is the oxidation number for the entity: S in HS−(aq)? Oxidation Number:The total electrons lost or gained by a chemical species during formation of a molecule is known as oxidation number. The chemical species is reduced if its oxidation number is decreased. The chemical species...
What is the ratio of XeF4with mass 6 grams mass of F atoms/mass of Xe atoms? Atomic Mass and Molecular mass: The mass that an atom possesses is referred as its atomic mass. Its SI unit is kilogram, most commonly Dalton or u (unified mass) is used. The mass...
What is the difference between analytical chemistry and physical chemistry? When 1.20 mole of ammonia ( NH_3 ) reacts, what is the total number of moles of water formed? NH_3(g) + O_2(g) = NO(g)+H_2O(l) What is the difference between enthalpy change and enthalpy of reaction?