To find the mass of the element/compound by itself, subtract the mass of the beaker from the mass of the beaker and the unknown.
To find the molar mass of the element/compound, divide the mass of the unknown by the number of moles.
Find the molar mass of each of the following possible unknowns:
Sodium iodide (NaI)
Potassium iodide (KI)
Sodium chloride (NaCl)
Sodium hydroxide (NaOH)
Calcium hydroxide (Ca(OH)2)
Zinc (Zn)
Iron (Fe)
To find the molar mass of the element/compound, divide the mass of the unknown by the number of moles.
Find the molar mass of each of the following possible unknowns:
Sodium iodide (NaI)
Potassium iodide (KI)
Sodium chloride (NaCl)
Sodium hydroxide (NaOH)
Calcium hydroxide (Ca(OH)2)
Zinc (Zn)
Iron (Fe)