| 摘要 |
PURPOSE:To simplify computation of mols of various materials, by attaching or assembling a mol computing instruments, which comprises a circular part where a mol scale is marked and can be rotated, to a mass measuring instrument or using the mol computing instrument independently. CONSTITUTION:A disk B, on which a mol scale is marked, and an outer disk A, on which a mass scale is marked, are arranged in a concentric manner so that they are rotated each other. The magnitudes of the mass scale and the mol scale are determined depending on a material. In measuring the mol, the zero point of the mass scale of the outer disk A is aligned with the zero point of the mol scale of the inner disk B. The value of the mol on the disk B, which agrees with the value of the mass scale of the disk A, is read. When one disk, on which a plurality of mol scales are concentrically marked, is used instead of the disk B, it is more effective. When logarithmic scales are used for both mass scale and mol scale, the mol value can be computed for any material. Thus the computation of the mol from the mass of a material can be simplified. |
