Asked by T
                Hi, I'm a little stuck on this problem:
Find the pH of the Hydrochloric acid solution when 5.0 mL of concentrated HCl, with a specific gravity of 1.18 and has 37% (w/w) purity is diluted to 2.0L
            
        Find the pH of the Hydrochloric acid solution when 5.0 mL of concentrated HCl, with a specific gravity of 1.18 and has 37% (w/w) purity is diluted to 2.0L
Answers
                    Answered by
            bobpursley
            
    2L of what?
    
                    Answered by
            DrBob222
            
    I assume you mean 2.0 L of solution with water.
What's the molarity of the 37% (first stuff)? That's
1.18g/mL x 1000 mL x 0.37% = g HCl
gHCl/molar mass HCl = moles HCl/L = M
Then use
c1v1 = c2v2
c1 = M from above
v1 = 5.0 mL
c2 = solve for this
v2 = 2000 mL.
    
What's the molarity of the 37% (first stuff)? That's
1.18g/mL x 1000 mL x 0.37% = g HCl
gHCl/molar mass HCl = moles HCl/L = M
Then use
c1v1 = c2v2
c1 = M from above
v1 = 5.0 mL
c2 = solve for this
v2 = 2000 mL.
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