Consider the following gases, all at STP: Ar, SF6. N2O, C2H2 Which one has the highest root-mean-square molecular speed at a given temperature? ○ Ar ○ SF6 ON₂O ○ C₂H₂ Onone of the above

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A: KCN (aq) + Hl (aq) ----> KI (aq) + HCN (aq)

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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.