Chem Urgent!

posted by .

How do I determine the number of moles for the substance: 3.5 x 10^23 molecules H2O?

  • Chem Urgent! -

    1 mol of anything has 6.02 x 10^23 molecules of (in this case) H2O. This must be close to a 0.5 mol but you need to do the exact arithmetic.

  • Chem Help Please! -

    How do I determine the number of grams for the following Substance? 7.8 mol ZnSo4.

  • Chem Help Please! -

    How do I determine the number of grams for the following Substance? 7.8 mol ZnSo4

  • Chem Urgent! -

    grams = mols x molar mass

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. help with stochiometry

    can someone help me out with this one? balanced equation is: 2H2 + O2 > 2H2O My questions are: How many molecules of water are produced from 2.0 * 10 ^23 molecules of oxygen?
  2. chem

    what does coefficients in equations mean, in chemical terms?
  3. Chem Also Urgent!

    How do I determine the number of grams for the following substance: 2.40 mol O2?
  4. Physics

    A runner weighs 560 N (about 130 lb), and 74% of this weight is water. (a) How many moles of water are in the runner's body?
  5. Chem: Mole and Avogadros Number

    How many molecules are in the quantities below?
  6. Chemistry

    Thank you for your help. I did want to clarify why you are only calculating the Molar Mass for H2 and not the molar mass for H2O (or even H2O2). I'm not sure why you did this. Please clarify. See below: The following reaction represents …
  7. Chemistry

    In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B 2A ---> 3B How many molecules of substance B are produced when 27.9 g of substance A reacts?
  8. chemistry

    If you have 12 moles of a substance, how many molecules do you have of that substance?
  9. chemistry

    Calculate the following quantities. (See the periodic table.) (a) mass, in grams, of 2.54 10-2 mol of CdS g (b) number of moles of NH4Cl in 90.0 g of this substance mol (c) number of molecules in 5.081 10-2 mol C6H6 molecules (d) number …
  10. chemistry

    In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. How many molecules of substance B are produced when 26.5 g of substance A reacts?

More Similar Questions