QRT Sept 25 - September 25, 2007 Section R02 3: 86, 88....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
September 25, 2007 Section R02 3: 86, 88. 100, 101 86. What is the difference between an empirical formula and a molecular formula? Use the compound  ethane, C 2 H 6 , to illustrate your answer. An empirical formula is a formula that reports the simplest possible ratio of atoms in the molecule. On the  other hand, a molecular form can be any formula for that compound, but must remain in a set ratio. For  example, the empirical formula for ethane is CH 3 ; however, its molecular formula can be CH 3 , C 2 H 6 , etc. 88. The empirical formula of maleic acid is CHO. Its molar mass is 116.1 g/mol. What is its molecular  formula? Molar mass of CHO= (12.0107)+(1.00794)+(15.9994)=29.01804 g/mol (116.1 g/mol)/(29.01804 g/mol)= 4.00 So the molecular formula is 4 times the empirical formula. Thus the molecular formula is C 4 H 4 O 4 . 100. The action of bacteria on meat and fish produces a poisonous and stinky compound called 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

QRT Sept 25 - September 25, 2007 Section R02 3: 86, 88....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online