![]() ![]() The molar mass of a compound is the sum of the atomic masses of each element in that compound multiplied by their subscripts.The molar mass of a species is the total mass of an element or compound per 1 mole.Convert from moles back to mass by multiplying by the molar mass.You multiply that quantity by the mole-mole conversion factor that relates moles of nitrogen to moles of ammonia. To solve this problem, you begin with your known quantity, the 278 mol of nitrogen thats to be reacted. Convert from mass of the species to moles of the species by dividing by the molar mass For example, say you want to calculate how many moles of ammonia can be expected from the reaction of 278 mol of N 2 gas.Ionic charges are not yet supported and will be ignored. Use uppercase for the first character in the element and lowercase for the second character. ![]()
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