The molecular weight of calcium carbonate, \text{CaCO}_3CaCO 3 start text, C, a, C, O, end text, start subscript, 3, end subscript, is 100.09\,\dfrac{\text g}{\text{mol}}100.09 mol g 100, point, 09, start fraction, start text, g, end text, divided by, start text, m, o, l, end text, end fraction. How many moles of calcium carbonate are in 63.8\,\text g63.8g63, point, 8, start text, g, end text of calcium carbonate?