1.9993999057621666 moles
1 mole = 36.46094
<h3>Hey Mate Here Is Your Answer:- </h3>
The process of forcing liquid at high pressure into rocks, deep holes in the ground, etc. in order to force open existing cracks and take out oil or gas.
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C) Stars get born, get older, then eventually die.
Answer:
355.5 g.
Explanation:
- The balanced equation for the mentioned reaction is:
<em>2Al + 6HCl → 2AlCl₃ + 3H₂,</em>
It is clear that 2.0 moles of Al react with 6.0 mole of HCl to produce 2.0 moles of AlCl₃ and 3.0 mole of H₂.
- Firstly, we need to calculate the no. of moles of (87.7 g) of Al:
no. of moles of Al = mass/atomic mass = (87.7 g)/(26.98 g/mol) = 3.251 mol.
<em><u>Using cross multiplication:</u></em>
2.0 mol of Al need to react → 6.0 mol of HCl, from stichiometry.
3.251 mol of Al need to react → ??? mol of HCl.
∴ the no. of moles of HCl needed to react with (87.7 g) 3.251 mol of Al = (3.251 mol)(6.0 mol)/(2.0 mol) = 9.752 mol.
- Now, we can get the mass of HCl needed to react with (87.7 g) 3.251 mol of Al:
<em>mass of HCl = (no. of moles)(molar mass) </em>= (9.752 mol)(36.46 g/mol) = <em>355.5 g.</em>
