Question

calcule quantas gramas possui 3,5 mols de C2H5Cl​

Answer 1

$n_{C_2H_5Cl}=3,5\;mol$

$M_{C_2H_5Cl}=2M_C+5M_H+M_{Cl}=2\times12,01+5\times1,01+35,45=64,52\;g/mol$

    $m_{C_2H_5Cl}=M_{C_2H_5Cl}\times n_{C_2H_5Cl}\Leftrightarrow$

$\Leftrightarrow m_{C_2H_5Cl}=64,52\times 3,5\Leftrightarrow$

$\Leftrightarrow m_{C_2H_5Cl}=225,82\;g$

Resposta: 225,82g