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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: ahawk1 on February 02, 2009, 03:12:28 PM

Title: intro to engineering chem
Post by: ahawk1 on February 02, 2009, 03:12:28 PM

Sulfur, S8, combines with oxygen at elevated temperatures to form sulfur dioxide. If 312 oxygen molecules are used up in this reaction, how many sulfur molecules reacted?

How do i know what the formula is?

Title: Re: intro to engineering chem
Post by: typhoon2028 on February 02, 2009, 03:17:45 PM

Do you know the formula for carbon dioxide?

Title: Re: intro to engineering chem
Post by: ahawk1 on February 02, 2009, 03:20:26 PM

CO2
so would it be SO2 and if there is 312 oxygen 156 Sulfur?

Title: Re: intro to engineering chem
Post by: ahawk1 on February 02, 2009, 03:33:38 PM

ok so i wrote out the formula and balanced it
S8+8O2-->8SO2
i got 39 for the previous answer and it was right!

thanks for the help =]