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OpenStudy (anonymous):
How many grams of SO3 are needed to make 250ml of 0.750 molar solution? a. 0.015g b. 0.15g c. 15g d. 150g
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OpenStudy (anonymous):
The molar mass of SO3 is 80 g/mol and 0.750M=0.75mol/L (.750 mol/L)x(.250L)=0.1875mol SO3 (0.1875mol)x(80 g/mol)=15g SO3 are needed.
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