In an industrial chemical process, the thermal decomposition of strontium carbonate is monitored and controlled to produce a targeted mass of strontium oxide according to the following equation:
SrCO3→SrO+CO2\text{SrCO}_3 \rightarrow \text{SrO} + \text{CO}_2SrCO3→SrO+CO2
Calculate the mass of strontium carbonate needed to make 425 g425\text{ g}425 g of strontium oxide.
(ArA_rAr: Sr=87.6\text{Sr} = 87.6Sr=87.6, C=12.0\text{C} = 12.0C=12.0, O=16.0\text{O} = 16.0O=16.0)
Give your answer to 3 significant figures.