Respuesta :

carysechong

Answer:

1.417

Explanation:

[tex]moles = \frac{mass}{molar \: mass} [/tex]

The molar mass or the neutron number can be found from the periodic table.

There are two elements in H2O

  • Hydrogen, molar mass 1
  • Oxygen, molar mass 16

To find the total molar mass add 2 hydrogens and one oxygen mass. So 2(1)+16=18

seedsaver8

Answer:

1.4154650940756959

Explanation:

Hello there,

  • So for this question you want to know how many moles are in 25.5 grams of H2O. the easiest way of solving this is by figuring out how many moles are in 1 gram of H2O, then multiply that by 25.5. Let me show you how.
  • So for one gram of H2O, we have 0.055508435061792 mol.
  • Using a calculator, we can use that 0.055508435061792 mol and multiply it by 25.5 grams of H2O to get the answer.

I hope this helped!