Sumali sa IDNStudy.com at makuha ang mabilis at kaugnay na mga sagot. Sumali sa aming platform upang makatanggap ng mabilis at eksaktong tugon mula sa mga propesyonal sa iba't ibang larangan.
1) Chemical reaction
C6H6 + Br2 ---> C6H5Br + HBr
2) Molar raios
1 mol C6H6 : 1 mol Br2 : 1 mol C6H5Br
3) Convert the data to moles
42.1 g of C6H6
molar mass of C6H6 = 6*12g/mol + 6*1g/mol = 78 g/mol
42.1 g / 78 g/mol = 0.54 mol
73.0 g of Br2
molar mass of Br2 = 2 * 79.9 g/mol = 159.8 g/mol
73.0 g / 159.8 g/mol = 0.46 mol of Br2
=> limiting reagent is the Br2.
4) Product
1 mol of Br2 (limiting reagent) yields 1 mole of C6H5Br, then you will obtain 0.46 mol of C6H5Br
5) Convert the product to grams
molar mass of C6H5Br = 6*12g/mol + 5*1g/mol + 79.9 g/mol = 156.9 g/mol
0.46mol*156.9g/mol = 72.2 g.
Answer: 72.2 g