Final answer:
To find the number of grams of HCl needed for 2.7 mol, multiply 2.7 mol by the molar mass of HCl (36.5 g/mol) to get 98.55 grams of HCl.
Explanation:
To find the number of grams of HCl needed for 2.7 mol, use the molar mass of HCl (36.5 g/mol):
- 2.7 mol HCl x 36.5 g/mol = 98.55 g of HCl
Therefore, 98.55 grams of HCl should be weighed.
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