Why NH4 + has a positive charge?  I read that NH3 has a lone pair which it uses to become positive but how? 

Dear student

It should be NH4+ , which is the ammonium ion.

Ammonia (NH3) is electrically neutral, while ammonium is a postively charged ion (NH4 +). 


Ammonium is the form of nitrogen that aquatic plants can absorb and incorporate into proteins, amino acids, and other molecules. Ammonium is a waste product of metabolism in animals, and high concentrations can enhance the growth of algae and aquatic plants. Bacteria can also convert high ammonium to nitrate (NO3 -), which lowers dissolved oxygen.

Ammonia, however, is commonly used as  fertilizer and general purpose household cleaner. Household ammonia (ammonium hydroxide) is a solution of NH3 in water and is used to clean glass, porcelain and stainless steel.

Hope this information will clear your doubts regarding the topic.

If you have any other doubts please ask here on the forum and our experts will try to solve them as soon as possible.

 Regards

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