D. 2,3.1 10. What volume will a 2.0 mol of axygen gan occupy at STP? A 20.4 L B. 44.8L C. 44.81 L D. 45 L 11. What is the study of the quantitative relationships or ratios between two or more substances undergoing a chemical reaction? A. Gas Law B. Stoichiometry C. Ideal Gas Law D. Kinetic molecular theory 12. Which of the following statenent is FALSE regarding ideal gas? A. Ideal gas molecules take up little or no space. B. Ideal gas molecules interact only through elastic collision. C. Ideal gas molecules have strong intermolecular forces between them. D. Ideal gas molecules average kinetic molecular enery depends on its temperature. 13. What is the totai pressure of a mixture that contains four gases with partial pressures of 1.0 atm, 3.5 atm, 2.0 atm and 1.5 atm respectively? A. 8.0 atm B. 9.0 atm C. 10.0 atm D No anawer since the information is incomplete 14. f the temnperature of a g molecules increases, what will happen to its volume and pressure.

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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.