Some Basic Concepts of Chemistry - Result Question 10

####10. For the following reaction, the mass of water produced from 445g of C57H110O6 is :

2C57H110O6(s)+163O2(g)114CO2(g)+110H2O(l)

(2019 Main, 9 Jan II)

(a) 490g

(b) 495g

(c) 445g

(d) 890g

Show Answer

Solution:

  1. 2C57H110O6(s)+163O2(g)110H2O(l)+114CO2(g)

Molecular mass of C57H110O6 =2×(12×57+1×110+16×6)g=1780g

Molecular mass of 110H2O=110(2+16)=1980g

1780g of C57H110O6 produced =1980g of H2O.

=495ofH2O



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