In a mass-mass problem, which information is used to change from moles
of a substance sought to mass of substance sought?
a. formula mass of the substance given.
b. formula mass of the substance sought.
c. subscripts from the chemical formulas
d. coefficients from the chemical equation.

"...[A] mole of a substance is a quantity in grams that is numerically
equal to its molecular weight expressed in atomic mass units." 
Chemical Principles, fourth edition, Dickerson, Gray, Darensbourg, and
Darensbourg, The Benjamin/Cummings Publishing Company, Inc., 1984,
page 37.

Therefore, the formula mass in the form of the molecular weight/mass
of the substance sought would be used to convert the substance sought
from moles to mass.

Sincerely,

Wonko

---

Request for Answer Clarification by teatea-ga on 07 Jul 2003 19:00 PDT

Could you please tell me what the best answer is?
Thank you

---

Clarification of Answer by wonko-ga on 07 Jul 2003 20:23 PDT

Sorry it wasn't clear.  B is the answer.

Sincerely,

Wonko