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Elby Naulak
Answers (1)
Formula of potassium oxide is K2O. Molar mass of K2O =(39x2)+16=94g/mol No.of moles of K2O=Mass in gram/Molar mass=7.45g/94g/mol=0.079mol. 1 mole of K2O contains molecules=6.022x10²³ Therefore,0.079 mole of K2O contains molecule=6.022x10²³x0.079
