An air sample in the lungs contains oxygen at 90 mmHg , nitrogen at 567 mmHg , carbon dioxide at 40 mmHg , and water vapor at 45 mmHg .What is the total pressure, in atmospheres, exerted by the gas mixture?

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Q: a) b) H3C a CH3 CH3 CH3 H3C b b -CH3 CH3 CH3 a b equal

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Q: Determine the percent ionization of a 0.280 M solution of benzoic acid (Ka = 6.5 × 10-5).

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Q: Give the common names for each compound HO- O 010 H C Br

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Q: ELOH на э

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Q: Q CI HOME OMe

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Q: 4 A chemistry graduate student is given 500. mL of a 0.20M nitrous acid (HNO₂) solution. Nitrous…

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Q: НО. ОН Br Br мла да ОН -ОН CI ОН ОН

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.