Moles of c2h6 in 3.75x10 ^23 molecules of c2h6

Answer : The number of moles of is, 0.622 moles

Solution :

As we know that,

1 mole contains number of molecules.

As, number of molecules of present in 1 mole of

So, number of molecules of present in mole of

Therefore, the number of moles of is, 0.622 moles

i'm not sure

explanation:

i'll try whatever you got

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !