It is very common to express the concentration of solutions in terms of percentages. Percent means per 100 parts, where for solutions, part refers to a measure of mass (Î¼g, mg, g, kg, etc.) or volume (Î¼L, mL, L, etc.).
The founding ceremony of the Federation in 2161. The four founding species of the Federation (clockwise from top left): Humans, Vulcans, Andorians, and Tellarites. The Federation was founded in San Francisco, Earth in 2161.
The American Federation of Labor (AFL) was organized in 1886. Its president was Samuel Gompers, who served until 1925.During Gompers' presidency, the AFL rose to more than 4 million members by 1920, after which its membership declined until 1933, when it was not much more than 2 million.he American Federation of Labor (AFL) was organized in 1886. Its president was Samuel Gompers, who served until 1925.