物质的量、气体摩尔体积、阿伏加德罗常数、阿伏加德罗定律、化学反应方程式是中学化学的基础,其中物质的量是化学计算的核心,它既是高考中经常出现的考点,也是高考复习的重点.考点1阿伏加德罗常数例1设NA表示阿伏加德罗常数的数值,下列说法正确的是().A1L1mol.L-1的Na2CO3溶液 The amount of material, gas molar volume, Avogadro’s constant, Avogadro’s law, chemical reaction equation is the basis of chemistry in middle school, of which the amount of material is the core of stoichiometry, Is also the focus of college entrance examination review point 1 Avogadro constant Example 1 Let NA said Avogadro constant values, the following statement is correct (). A1L1mol.L-1 Na2CO3 solution