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A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [2]
Vinh (Vietnamese: ⓘ) is the capital of Nghệ An province and an economic and cultural center of North-Central Vietnam. [1] A key point in the East–West economic corridor linking Myanmar, Thailand, Laos and Vietnam, the city is situated in the Southeast of the province, alongside the Lam River and is located on the main North–South transportation route of Vietnam, making it accessible by ...
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...
Nguyễn Phú Trọng (Vietnamese: [ŋwiən˦ˀ˥ fu˧˦ t͡ɕawŋ͡m˧˨ʔ] ⓘ new-yen foo chong; [1] 14 April 1944 – 19 July 2024) was a Vietnamese politician and communist theorist who served as general secretary of the Communist Party of Vietnam from 2011 until his death in 2024.
Pages for logged out editors learn more. Contributions; Talk; Từ điển bách khoa toàn thư Việt Nam
Liang published Phan's 1905 work Việt Nam vong quốc sử (History of the Loss of Vietnam) and intended to distribute it in China and abroad, but also to smuggle it into Vietnam. Phan wanted to rally people to support the cause for Vietnamese independence; the work is regarded as one of the most important books in the history of Vietnam's ...
The Vietnamese Wikipedia (Vietnamese: Wikipedia tiếng Việt) is the Vietnamese-language edition of Wikipedia, a free, publicly editable, online encyclopedia supported by the Wikimedia Foundation. Like the rest of Wikipedia, its content is created and accessed using the MediaWiki wiki software.
Vĩnh Yên (Vietnamese: [vǐɲˀ ʔīən] ⓘ) is the city capital of Vĩnh Phúc Province, in the Red River Delta region of northern Vietnam. As of census 2019, the population is 119,128 people, the area is 50.78 km 2 .