Calculate the number of molecules in 1 kg of Calcium Chloride.

Asked by aashimegh | 28th Aug, 2019, 05:25: PM

Expert Answer:

Given:
 
Mass of calcium chloride = 1 kg
 
                                    = 1000 gm
 
Molar mass of calcium chloride = 110.98 gm/mol
 
No. of moles of calcium chloride 
 
equals fraction numerator 1000 over denominator 110.98 end fraction

equals space 9.01 space mol
 
No. of molecules of CaCl2 = No. of moles of  CaCl2 × Avogadro's number
 
                                      = 9.01 × 6.022 × 1023 
 
                                      =5.42 × 1024 molecules of CaCl2 

Answered by Varsha | 29th Aug, 2019, 10:28: AM