Smelting question

Welcome to our free

Chemistry Homework Help

forum.

Please read the forums rules before posting.

Find out how you can Help My Chemistry Tutor

[ninjamet]

Heating a 6.862 g sample of an ore containing a metal sulfide in excess oxygen produces 1053 ml of SO2 gas measured at 66 degrees C and 739 mmHg.  Calculate the percentage by mass of sulfur in the ore.

Not current with my industrial chemistry.

[spock]

You need to use the Ideal gas equation to calculate the moles of S:
                  PV = nRT rearranged to give n = RT/PV
(make sure that your units for R and your volume, pressure, and temperature units are compatible.)

The moles of SO2 will be the same as the moles of S in the ore.

Convert moles of S to mass using the molar mass of S (32 g/mol).

Percent = mass of the S / mass of the ore   x 100

[Tags:]

Jump to: Please select a destination: ----------------------------- Chemistry Homework Help ----------------------------- => High School Chemistry => AP Chemistry => General Chemistry => Organic Chemistry