posted by .

so i know that one mole is 6.022*10^23 particles in 12g of a carbon 12 isotope. im confused in finding the amount of moles in a particular substane. there is a formula that determines it, i think its n=m/M, yet im confused with what it means..

  • chemistry -

    # moles = grams/molar mass

    48 g C. How many moles.
    48/12 = 4.0 moles.

    70 g Cl2. How many moles?
    70/70.9 = ??

    536 g AgNO3. How many moles.
    536/169.9 = ??

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    how would you begin this question? An empty 15.0 L cylinder, .500 moles of gaseous PCl5 are added and allowed to reach equilibrium. The concentration of PCl3 is found to be .0220M. (Temp at 375K) PCl3(g) + Cl2(g) --> PCl5(g) i need
  2. Chemistry

    If one mole of the compound Al4C3 has a mass of 144g and one mole of carbon has a mass of 12g, calculate the relative atomic mass of the element aluminium. 4 Al + 3 C=144 C=12 4 Al + 3 *12=144 solve for Al So C=36 which leaves 108 …
  3. chemistry

    if you have one mole of CH3CH3(g) + 2 moles of Cl2 (g) and form one mole of C2H4Cl2 (l) + 2 moles of HCl (g) assuming a 90% yield calculate the amount of each reactant needed to form 1.5 kg of product I started the problem following …
  4. 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 …
  5. Chemistry

    if each "hydrogen" atom has a mass of 1g and each "carbon" atom has a mass of 12g what is the ratio of the mass of 1 mole of carbon to one mole of hydrogen
  6. Chemistry

    According to the balanced equation 6 moles of carbon dioxide will react with 6 moles of water to produce 1 mole of sugar and 6 moles of oxygen. What are the molar masses of the following compounds from the photosynthesis equation?
  7. physical chemistry

    the isotopic abundance of C-12 and c-14 is 98% and 2% by mass respectively. what would be the no. of atoms of c-14 isotope in 12g carbon sample?
  8. Chemistry

    Someone help me with my titration molarity calculation please!?
  9. Chem

    Complete combustion of 8.30 g of a hydrocarbon produced 26.7 g of CO2 and 9.10 g of H2O. What is the empirical formula for the hydrocarbon?
  10. chemistry

    How may particles are there in: in 1 mole of silicon?

More Similar Questions