What is the molarity of the HCl solution? That's
1000 mL x 1.2 g/mL x 0.0365 x (1 mol/36.5g) = 12M
Zn + 2HCl ==> ZnCl2 + H2
How many mols is 4g H2.
mol = grams/molar mass = 4/2 = 2
2 mols H2 = 2*2 = 4mols HCl
M HCl = mols HCl/L HCl. You know M HCl from above and mols HCl from above, solve for L HCl and convert to mL.
What volume of hcl solution of density 1.2g/cm3 and containing 36.5% by weight hcl, must be allowed to react with zinc in order to liberate 4g of hydrogen
The answer 333.3ml
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