Chemistry, 28.01.2020 23:40 Bunnybear3384
In order to understand the prehistory of the hawaiian island of lana'i better, anthropologists maria sweeney, melinda allen, andboyd dixon used radiocarbon dating on charcoal found in an ancient dwelling site, the kaunolu village national historic landmark, the largest archeological complex on the island. in one of their samples, they found that approximately 94% of the original carbon 14 remained. using the fact that carbon 14 decays by 1.202% every 100 years, determine the approximate age of this sample.
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Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
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Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn
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The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?
Answers: 1
In order to understand the prehistory of the hawaiian island of lana'i better, anthropologists maria...
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