225 L of H2 gas and 75.0 L of N2 gas are simultaneous pumped into a 15.0-L reaction vessel at constant temperature; both gases were initially at 1.00 atm. When both gases react completely to form ammonia (NH3) according to the following equation, what is the pressure of NH3? Assume that the temperature and volume remain constant during the entire process. N2(g) + 3H2(g) --> 2NH3(g) (A) 30.0 atm (B) 20.0 atm (C) 15.0 atm (D) 10.0 atm

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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.