Search for a Location
  Clear Recents
Metro
South West
Central West
North West
  Surf Cameras
  Safety Bay Camera
Metro
North
Mid North
Illawarra
South Coast
Metro
West Coast
East Coast
Brisbane
Far North
Central Coast
Sunshine Coast
Gold Coast
Hobart
West Coast
North Coast
East Coast
Recent
Western Australia
New South Wales
Victoria
South Australia
Queensland
Northern Territory
Tasmania
  My Favourites
  Reverse Arrows
General
Gps & Speed Sailing
Wave Sailing
Foiling
Gear Reviews
Lost & Found
Windsurfing WA
Windsurfing NSW
Windsurfing QLD
Windsurfing Victoria
Windsurfing SA
Windsurfing Tasmania
General
Gear Reviews
Foiling
Newbies / Tips & Tricks
Lost & Found
Western Australia
New South Wales
Queensland
Victoria
South Australia
Tasmania
General
Foiling
Board Talk & Reviews
Wing Foiling
All
Windsurfing
Kitesurfing
Surfing
Longboarding
Stand Up Paddle
Wing Foiling
Sailing
  Active Topics
  Subscribed Topics
  Rules & Guidelines
Login
Lost My Details!
Join! (Its Free)
  Search for a Location
  Clear Recents
Metro
South West
Central West
North West
Surf Cameras
Safety Bay Camera
Metro
North
Mid North
Illawarra
South Coast
Metro
West Coast
East Coast
Brisbane
Far North
Central Coast
Sunshine Coast
Gold Coast
Hobart
West Coast
North Coast
East Coast
Recent
Western Australia
New South Wales
Victoria
South Australia
Queensland
Northern Territory
Tasmania
  My Favourites
  Reverse Arrows
All
Windsurfing
Kitesurfing
Surfing
Longboarding
Stand Up Paddle
Wing Foiling
Sailing
Active Topics
Subscribed Topics
Forum Rules
Login
Lost My Details!
Join! (Its Free)

Forums > General Discussion   Shooting the breeze...

Chemistry 101 anyone?

Reply
Created by AquaPlow > 9 months ago, 27 Mar 2012
AquaPlow
QLD, 1053 posts
27 Mar 2012 10:40PM
Thumbs Up


If U home brew great topic -
The kids are studying yeast and anerobic respiration - I thought I would have a quick review as it has been years and the rust has set in.. or has it???
Source - 13yo's chemical science theory book

What is wrong with this???



Far from balanced and not exactly anerobic..

(loved the smell of home brew(ing))
Cheers
AP

SailCoothara
VIC, 137 posts
28 Mar 2012 12:31AM
Thumbs Up

Why does it state no oxygen is needed yet the chemical equation includes oxygen... If you take it out I think it's balanced isn't it?

d1
WA, 304 posts
27 Mar 2012 10:08PM
Thumbs Up

Well spotted, AquaPlow, however, IMHO, the text is correct, and the formula is just a bit misleading due to lack of explanations.

My organic chemistry is very rusty, but I strongly suspect that 6O2 is not really meant as inorganic "oxygen", but as a representation of some of the enzymes that happen in yeasts (zymase?).

Anyway, ethanol fermentation is really considered anaerobic.

The reaction is, of course, exothermic, i.e. "energy" (well, heat), gets released, but this does not lead to imbalance. Some reactions just require a bit of energy to be added or removed for them to happen...

Mark _australia
WA, 22798 posts
27 Mar 2012 10:24PM
Thumbs Up

Balanced refers to the numbers of carbon / oxygen / hydrogen atoms on the left vs the right side of the equation

You do have to take out the 602 to balance it.
Has nothing to do with energy input or release

The equation is incorrect



Subscribe
Reply

Forums > General Discussion   Shooting the breeze...


"Chemistry 101 anyone?" started by AquaPlow