经验式计算器 — 公式

How to Find the Empirical Formula

Steps

1. Convert mass of each element to moles: moles = mass / atomic mass 2. Divide each by the smallest number of moles 3. Round to the nearest whole number to get subscripts

计算示例

A compound has 40 g C and 6.7 g H.

  1. Moles C = 40 / 12.011 = 3.33
  2. Moles H = 6.7 / 1.008 = 6.65
  3. Divide by smallest (3.33): C = 1, H = 2
  4. Empirical formula: CH2