chem

posted by .

When an electric discharge is passed through boron trichloride a new compound is formed. what is its simplest formula if on analysis it is shown to contain .0878 g of chlorine and .0131 g of boron?

  • chem -

    Convert grams to moles for each element.
    moles = g/molar mass
    Then find the molar ratio of the elements to each other with 1.00 being the smallest number used. The easy way to do that is to divide the smaller number by itself (thereby assuring 1.000 for that number), then divide the other number by the same small number. Finally, round to whole numbers and you should have the formula BxCly. Post your work if you get stuck.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. CHEMISTRY (PLEASE HELP)

    1.What would happen to poisonous chlorine gas if protons were added neutrons were added 2. Boron is 80.20% boron -11 (atomic mass = 11.01 amu) and 19.80% of some isotope form of boron. What must the stomic mass of this second isotope …
  2. Chemistry

    Which of the following elements (C, B, Be, Li for both parts of the question) will have the greatest increase in ionization energy between the removal of the first and second electrons?
  3. chemistry

    Naturally occuring boron is 80.20% boron-11 and 19.80% of some other isotopic form of boron. What must be the atomic mass of this second isotope be in order to account for the 10.81 amu average atomic mass for boron?
  4. Chemistry

    Boron has only two naturally occurring isotopes. The mass of boron-10 is 10.01294 amu and the mass of boron-11 is 11.00931 amu. Use the atomic mass of boron to calculate the relative abundance of boron-10. Atomic mass of boron is 10.81 …
  5. chemistry

    Boron forms a gaseous compound with hydrogen with empirical formula BH3. a 1.05L sample of this compound at a pressure of 88 mm Hg at 295K has a mass of .138g. what is the molecular formula of the compound?
  6. chemistry

    Use demensional analysis to convert 4.68 grams of boron to cubic centimeters of boron. The density of boron is 2.34 grams per centimeters cubed
  7. Maths-Help

    A silicon ingot, which should contain 10^16 boron atoms/cm3, is to be grown by the Czochralski technique. What concentration of boron atoms should be in the melt to give the required concentration in the ingot ?
  8. Chem Help Please!!!

    for each of the pairs of elements below give the formula for the simplest compound to be formed from them and explain the basis of your decision and note if the bond(s) formed are ionic or covalent. a) silicon and oxygen (SiO2) b) …
  9. Chemistry

    When 0.500 moles of boron trichloride react with 1.20 moles hydrogen gas to produce elemental boron and hydrogen chloride gas, the actual yield of boron was 66.4 % of the theoretical yield. The mass of boron obtained was _____ g. Please …
  10. honors chem

    naturally occurring boron is 80.20% boron 11 (atomic mass= 11.01amu) and 19.80% of some other isoptopic form of boron. what must the atmoci mass be be in order to account for the 10.81 amu averafe atomic mass of boron?

More Similar Questions