Go Back   Chemistry Help Forum > Chemistry Forums > High School Chemistry Forum

High School Chemistry Forum Ask your high school chemistry questions here.

Reply
 
Thread Tools Display Modes
Old Apr 13th 2018, 11:38 PM   #1
Indranil
Junior Member
 
Join Date: Apr 2018
Location: India
Posts: 1
Indranil is on a distinguished road
The difference between ''1 C atom and 1 mole of C atoms"?

Does 1 C atom mean a single C atom of 6.023 X 10^23C atoms = 1 C atom of Avogadro's number of C atoms = 1 C atom of 6.023 X 10^23 numbers of C atoms?
Does 1 mole of C atoms mean Avogadro's number of C atoms = 6.023 X 10^23 numbers of C atoms?
I am confused. What is the difference between them (1 C atom and 1 mole of C atoms)? Could you clarify it, please?
Indranil is offline   Reply With Quote
Old Apr 25th 2018, 02:58 PM   #2
Elric
Junior Member
 
Join Date: Mar 2018
Location: Kentucky
Posts: 7
Elric is on a distinguished road
The first question I don’t understand. The second question is correct. As to the third question, do you mean 1C as in a formula?
Elric is offline   Reply With Quote
Old Apr 26th 2018, 06:28 PM   #3
FISMAQUIM
Junior Member
 
Join Date: Mar 2018
Location: Brazil
Posts: 3
FISMAQUIM is on a distinguished road
Chemistry

A swimmer breathes twenty times a minute and inhales 200 mL of air with each breath. Consider that inhaled air contains 20% (v/v) of O2(g) and the exhaled air has 10% of O2(g). If all consumed oxygen was used in the body's combustion of glucose and 25% of the energy obtained was used in the muscular work relay, determine the maximum distance that this swimmer to go in 1 hour, considering that 100 kJ of energy is spent in each km.
Data: ΔH(combustion) of glucose = -2880 kJ/mol, body temperature equal to 37C.
Answer: 1,1328 km
FISMAQUIM is offline   Reply With Quote
Reply

  Chemistry Help Forum > Chemistry Forums > High School Chemistry Forum



Thread Tools
Display Modes



Facebook Twitter Google+ RSS Feed