Potassium
Name:
Potassium [pə'tæsiəm]
K Molar Mass Conversion in Batch
Elem.
Total
Name
Atomic Mass
(g/mol)
Percentage
Mass
K
1
Potassium
39.0983
100%
39.1
→ K
Total: 39.0983 (g/mol)
Potassium element has 19 protons, 20 neutrons and 19 electrons circling around.
It is one of the
Alkali metals and very reactive. In the open air, potassium metal will act with oxgen violently to produce potassium peroxide K2O2. The melting point
of potassium metal is 63.5 ̊C.
» Common Potassium compounds:
• Potassium Permanganate, KMnO4
• Potassium Hydroxide, KOH
• Potassium Oxide, K2O
• Potassium Peroxide, K2O2
• Potassium Carbonate, K2CO3
• Potassium Dichromate, K2Cr2O7
• Potassium Iodide, KI
Example Reactions:
• K + RbNO3 = Rb + KNO3
• Au + KNO3 = K + AuNO3
• K + Mn + 2O2 = KMnO4
• LiOH + K = KOH + Li
• LiBr + K = KBr + Li
• K + NaCl = KCl + Na
• LiClO3 + K = Li + KClO3
• AgCN + K = KCN + Ag
• KOH + Ag = K + AgOH
