posted by CHAZ .
what mass of H 2 O is needed to completely react with 5.10g SiCl4
college Chemistry -
SiCl4 + 2 H2O → SiO2 + 4 HCl
The ratio r of mass of H2O to SiCl4 is therefore
r = 2*(molar mass of water)/(molar mass of SiCl4)