Fill in the correct present tense conjugation of the ar verb in ( )
juan por teléfono (hablar)
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Ответ:
To solve this problem, we must first convert sulfur the mass of sulfur into number of moles. We know that molar masses of the elements are:
S = 32 g / mol
P = 31 g / mol
Therefore the molecular forms has molar masses of:
S8 = 8 (32 g / mol) = 256 g / mol
P4 = 4 (31 g / mol) = 124 g / mol
Therefore converting mass to moles for S8:
moles S8 = 6.41 g / (256 g / mol) = 0.025 mol S8
This amount should be equal to P4, hence the number of moles of P4 should also be:
moles P4 = 0.025 mol P4
Converting to mass:
mass P4 = 0.025 mol (124 g / mol)
mass P4 = 3.1 g