anonymous
  • anonymous
How many moles of H2O are in 42.0 g H2O? 2.33 mol H2O 5.25 mol H2O 6.00 mol H2O 7.56 mol H2O
Chemistry
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
can somene provide me the answer please thanks
Photon336
  • Photon336
\[42.0g x (1mol H2O/18g) = 2.3 mol H2O\]
Photon336
  • Photon336
The reason for this is that simply that you need to just set up your fraction, 1 mol contains 18.0 grams of water. and then multiply by the number of grams.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Photon336
  • Photon336
if you notice grams cancel out and you're left with moles in the numerator. \[Grams \frac{ mol }{ grams } \]
Photon336
  • Photon336
\[Grams \times \frac{ 1 }{ grams } = \frac{ Grams }{ Grams } = 1 \] This is why the units cancel out
anonymous
  • anonymous
As mentioned the best way to set work this problem is to set up a table and cancel until you get what you want. Remember to go to moles from grams, divide by molar mass and to go from moles from grams multiply by molar mass.

Looking for something else?

Not the answer you are looking for? Search for more explanations.