Questions & Answers for: molecules Optics

... Find the number of moles of nitrogen in 1.75 mol N2H4? You have 1.75 moles of hydrazine or 1.75xNa molecules of the substance. Since each molecule of N2H4 contains 2 atoms of nitrogen 1.75Na ...

...during The Expedition and find themselves in a new Quest where there is nothing but a pile of molecules and the Avatar. Exhausted from playing all eight Quests to gather Cognizant?s DNA, the ...

...during The Expedition and find themselves in a new Quest where there is nothing but a pile of molecules and the Avatar. Exhausted from playing all eight Quests to gather Cognizant?s DNA, the ...

molecule paraffin has the formula C20H44. what does that tell you about the molecule If such a molecule exists It has 20 Carbon atoms, and 44 Hydrogen. Paraffin is sometimes used as a generic name for

why does liquid expand when it freezes? Water is made of up molecules that are very close to one another. They are forced together because of something called a bond. As water cools down, the ...

...Each molecule contains two hydrogen atoms. A mole of hydrogen gas contains 6.02*10^23 hydrogen molecules, but since each molecule contains 2 hydrogen atom you have 2*6.02*10^23=? The formula for ...

converting molecules to moles of gas avagadros number Divide the number of molecules by Avogadro's number to get the number of moles. number of moles=(number of molecules)/(6.02x10^23)

...For a start your trying to compare one dimension to three. 1 liter of O2 contains 6.02*10^23/22 molecules. Size of 1 molecule O2 is 0.3 nm or 0.3*10^-9 m. If we put molecules from 1 liter of O2 ...

...Solvation, also sometimes called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they