Answer to Question #199187 in General Chemistry for Domonique

Question #199187

Use the following balanced equation:

 

 Na2SiO3 (s) + 8 HF(aq)         →    H2SiF6 (aq) + 2 NaF(aq) + 3 H2O (l)

How many grams of Na2SiO3 can react with 2.800 g of HF


1
Expert's answer
2021-05-27T07:33:41-0400

v=m/M

M(HF)=20g/mol

v(HF)=2.800g/20g/mol=140mol

v(Na2SiO3)=n/8(HF)=140mol/8=17.5mol


m=v*M

M(Na2SiO3)=122g/mol

m(Na2SiO3)=122g/mol*17.5mol=2135g



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