Final Answer:
The mass of strontium (Sr) in the sample is x grams.
Step-by-step explanation:
To deduce the mass of strontium (Sr) in the sample, we need to consider the stoichiometry of the chemical compound involved. In this case, if the mass of strontium carbonate (SrCO₃) is known, the mass of strontium can be calculated by taking into account the molar mass of strontium and the stoichiometry of the compound.
Given that the molar mass of strontium carbonate (SrCO₃) is 147.63 g/mol and strontium contributes 43.65% of this mass, we can calculate the mass of strontium within the compound. This percentage comes from the fact that the molar mass of strontium (Sr) within strontium carbonate is about 87.62 g/mol, which accounts for approximately 43.65% of the total molar mass of the compound.
Using this information, if the mass of strontium carbonate is provided as 4.85 g, we can calculate the mass of strontium by multiplying the mass of strontium carbonate by the fraction representing the mass of strontium in the compound:
Mass of Strontium (Sr) = Mass of Strontium Carbonate (SrCO₃) × (Mass of Strontium / Molar Mass of Strontium Carbonate)
Substituting the given values, the mass of strontium (Sr) in the sample equals 4.85 g × (87.62 g/mol / 147.63 g/mol) = x grams. This calculation assumes that the given mass of strontium carbonate and the percentages of strontium within the compound are accurate.