AboutChad Welch Expertise I specialize in general chemistry, analytical and instrumental chemistry and inorganic chemistry.
Experience 3 years of work experience as an analytical chemist at Blanchard Metals and IM Flash Technologies. At Blanchard Metals I analyzed and adjusted the chemistry of plating baths. At IM Flash Technologies I work in a clean room checking the process chemicals and equipment used to manufacture semiconductors.
Organizations American Chemical Society (ACS)
Education/Credentials BS in Chemistry (ACS Certified)
Awards and Honors American Institute of Chemists, Chemist of the Year 2005-2006
Question Hey I've been stuck on this question for over 2 hours from an old test of one of my professors.
Elemental sulphur (s) can be obtained from hydrogen sulphide (H2S) through reaction with sulphur dioxide (SO2).
2 H2S(g) + S02(g) ----> 3 S(s) + 2 H20(l)
Determine what mass of sulphur is produced when 8.18 g of hydrogen sulphide (H2S) is reacted with a 4.01L sample of sulphur dioxide (SO2) held at 725 torr and 295 K.
R= 62.364 L Torr mol^-1 K^-1
T=295 degrees celcius
PV=nRT
The answer to it is 11.5g and i just cant come up with it. Really appreciate it if you're able to solve it so i don't have to go try to get in contact with my professor.
Hi Roshanb,
Given the information you have listed here, the correct answer is 7.90g. However, I believe there is a typo here (and perhaps in the old test of your professor's). I believe that 295 degrees celcius, should be 295 Kelvin. Assuming that is the case, the correct answer is 11.5g. I have worked out both scenarios in the attached image.
Best regards,
Chad Welch
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