To calculate the molar mass (m) of a substance, you can use the formula:
m = (M * N) / N_A
where:
M is the molar mass of the substance (142 g/mol in this case)N is the number of molecules or entities (3 x 10^23 in this case)N_A is Avogadro's number (6.022 x 10^23 mol^-1)
Plugging in the values, we get:
m = (142 * 3 x 10^23) / 6.022 x 10^23 m = (426 x 10^23) / 6.022 x 10^23 m = 70.81 g
To calculate the molar mass (m) of a substance, you can use the formula:
m = (M * N) / N_A
where:
M is the molar mass of the substance (142 g/mol in this case)N is the number of molecules or entities (3 x 10^23 in this case)N_A is Avogadro's number (6.022 x 10^23 mol^-1)Plugging in the values, we get:
m = (142 * 3 x 10^23) / 6.022 x 10^23
m = (426 x 10^23) / 6.022 x 10^23
m = 70.81 g
Therefore, the mass of the substance is 70.81 g.