Question

Calculați masa moleculară pt :

acid sulfhidric

acid carbonic

acid azotic

acid azotos

acid fosforos

hidroxid de natriu

hidroxid de calciu

hidroxid de aluminiu

Vă rog mult. Mulțumesc +dau coroană

Answer 1

H2S

M= 2+ 32=34------->34g/moli

H2CO3

M=2+12+3.16=62----->62g/moli

HNO3

M=1+14+3.16=63------> 63g/moli

HNO2

M=1+14+ 2.16=47------> 47g/moli

H3PO3

M=3+31+3.16=82 ------> 82g/moli

NaOH

M=23+16+1=40---->40g/moli

Ca(OH)2

M=40+2.16 +2=74----->74g/moli

Al(OH)3

M=27 +3.16 +3=78-----> 78g/moli