Sunday
March 29, 2015

Homework Help: Chemistry

Posted by Priyanka Chopra on Friday, June 1, 2012 at 1:52am.

This question looks at the relationship between the molecular structure, polarity and
solubility of ethanol (wikipedia ethanol), water and petrol
(Wikipedia Petroleum).
This posting was made on a discussion board:
"Ethanol mixs in fuel are not a bad thing if pure. What they don't tell you its not possible to be
pure unless you buy it in sealed drums direct.
Fact ethanol absorbs water from the air and with contact.
Fact ALL fuel stations have water in the bottom of the tanks. The pickup for fuel in these tanks are
not at the bottom, so unless the water isn?t monitored and comes up too high it not a problem.
Straight petrol floats on water and doesn?t mix or absorb water.
On the other hand any ethanol mix will come into direct contact with water at all fuel stations, a fact.
So straight away your running a small % of absorbed water through your cars which will effect
some parts such a fuel injectors over time."
Green - assume this is the case
Yellow - Analyse and evaluate these comments (explain the chemistry). Do you think the
author is correct?
Pink - rephrase this so it retains the authorís intent but makes sense from a chemical
perspective.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - When doing a simple distillation of ethanol-water, is the vapor pure...
Water solubility chemistry - What solvent that would dissolve Ethanol in water? ...
Chemistry - Hydrogren, a possible future fuel, can also be obtained from other ...
chemistry - What is the mass/vol % ethanol in an ethanol-water solution with ...
LAB!!!!! - can someone check this for me???? Thanks I really appreciate it!!!!! ...
Chemistry #11 - A solution of ethanol (C2H5OH) is prepared by dissolving 35.0 ml...
Chemistry - Ethanol is a fuel that can be made from corn. How many kJ of heat ...
Chemistry -repost thank you in advance - I have a bottle of 95% ethanol ...
Chemistry - In an experiment we did in class ethanol was poured into a test tube...
Algebra 1 - You drive a car that runs on ethanol and gas. You have a 20-gallon ...

Members