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CBSE Class 9 Answered

calculate the formula unit mass of CaCl2
Asked by prachisharma772007 | 16 Jan, 2022, 11:12: AM
answered-by-expert Expert Answer
CaCl2 molecule has one Calcium ( Ca ) atom and two chlorine ( Cl ) atoms.
 
Relative atomic mass of Ca = 40.08
 
Relative atomic mass of Cl = 35.45
 
Hence , Moleculer mass of CaCl2 = 40.08 + ( 2 × 35.45 ) = 110.98 amu ≈ 111 amu
 
( 1 amu = 1.660 × 10-27 kg )
 
Answered by Thiyagarajan K | 16 Jan, 2022, 13:10: PM

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