Composer and performer of Old Occitan lyric poetryduring the High Middle Ages (1100–1350). Since the word troubadour is etymologically masculine, a female troubadour is usually called a trobairitz.
 
        
             
        
        
        
The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.
        
             
        
        
        
Metal rusts when it oxidized around moisture.
        
             
        
        
        
The molar mass of methylammonium bromide is 111u.
<h3>What is molar mass?</h3>
The molar mass is defined as the mass per unit amount of substance of a given chemical entity.
Multiply the atomic weight (from the periodic table) of each element by the number of atoms of that element present in the compound. 
Add it all together and put units of grams/mole after the number. 
Atomic weight of H is 1u
Atomic weight of N is  14u
Atomic weight of C is  12u
Atomic weight of Br is  79u
Calculating molar mass of   =2(1 x3+ 14+12+ 1 x 3 +79) = 111u
 =2(1 x3+ 14+12+ 1 x 3 +79) = 111u
Hence, the molar mass of methylammonium bromide is 111u.
Learn more about molar mass here:
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