A weather balloon is floating partially inflated at a low altitude with a volume of 26.9. L, a temperature of 20.3. °C, and at a pressure of 701. mmHg. Over time it eventually rises to a high altitude where the pressure is 302. mmHg and the temperature drops to -29.7. °C. What is the final volume in L of this weather balloon?

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Q: 3. Under STP conditions what is the density of Oz gas?

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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.