Problemas
Multiple Choice 10 points 2Al+3Br_(2)arrow 2AlBr_(3) How many moles of AlBr_(3) will be formed from 6.0g of Br_(2) 12 mol 0.19 mol 64.8 mol
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Francisca
maestro · Tutor durante 5 años
4
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To determine the number of moles of
formed from 6.0g of
, we need to follow these steps:1. Calculate the molar mass of
.2. Convert the given mass of
to moles.3. Use the stoichiometry of the balanced chemical equation to find the moles of
formed.Step 1: Calculate the molar mass of
.The molar mass of
is the sum of the molar masses of two bromine atoms.Molar mass of
= 79.9 g/mol + 79.9 g/mol = 159.8 g/molStep 2: Convert the given mass of
to moles.Given mass of
= 6.0 gMoles of
= Given mass / Molar massMoles of
= 6.0 g / 159.8 g/mol = 0.0375 molStep 3: Use the stoichiometry of the balanced chemical equation to find the moles of
formed.According to the balanced chemical equation, 3 moles of
produce 2 moles of
.Moles of
= (2 moles
/ 3 moles
) × 0.0375 mol
Moles of
= 0.025 molTherefore, the correct answer is 0.025 mol.