Answer:
A Hydro-pneumatic tank is typically a horizontal pressurized storage tank. Pressurizing this reservoir of water creates a surge free delivery of stored water into the distribution system. Glass-reinforced plastic (GRP) tanks/vessels are used to store liquids underground.
HOPE THIS HELPED!!!!!!!!!!!XDDDDDDD
 
        
             
        
        
        
Mass of  Na2SO4= 514.18 grams
<h3>Further explanation</h3>
Given
423.67 g of NaCl
Required
mass of  Na2SO4
Solution
Reaction
2NaCl + H2SO4 → Na2SO4 + 2HCl
mol NaCl :
= 423.67 g : 58.5 g/mol
= 7.24
From the equation, mol Na2SO4 :
= 1/2 x mol NaCl
= 1/2 x 7.24
= 3.62
Mass  Na2SO4 :
= 3.62 mol x 142,04 g/mol
= 514.18 grams
 
        
             
        
        
        
Answer:
the answer is 1:3:2
Hope this helps, let me know if you need any other help, Stoichiometry is hard