Mass of Moles of a Substance
Posted: Thu Mar 26, 2026 3:31 pm
\((moles \,\,of\,\,a\,\,substance) \dfrac{mass\,\,of\,\,1\,\,mol\,\,of\,\,a\,\,substance}{1\,\,mol\,\,of\,\,a\,\,substance} =\)To find this, you need to know the molecular mass of the target substance, and that's found using the periodic table.
\(mass\,\,of\,\,moles\,\,of\,\,a\,\,substance\)
How many grams of water is 10 mol of water?
\(The\,\,molecular\,\,weight\,\,of\,\,H_{2}O\,\,is\,\,18.015\,g\)
\(so\)
\((10\,\,mol\,\,H_{2}O)\dfrac{18.015\,g\,\,H_{2}O}{mol\,\,H_{2}O} = 180.015\,g\,\,H_{2}O \)