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A student adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 1.0 L. What is the final concentration of the solution?
Convention of 1818
was an agreement between the U.S. and Britain that set the 49th parallel as the boundary between British North America and the United States, from the Lake of the Woods to the Rocky Mountains.
U.S./Canadian Border
The international boundary between the United States and Canada, stretching across North America and recognized as the world's longest undefended border.
American Merchants
Individuals from the United States engaged in domestic and international trade, playing a crucial role in the economic development and expansion of America, especially from the colonial period through the 19th century.
Trade With China
The commercial exchanges between China and other countries, encompassing goods, services, technology, and cultural products, pivotal for global economic dynamics.
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