Chem

What is the percent by mass of oxygen in Al2O3?

  1. 👍 0
  2. 👎 0
  3. 👁 141
asked by Lori
  1. [(molar mass O3)/(molar mass Al2O3)] x 100%

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    If the reaction of 2.5 g of Al with 2.5 g of O2 produced 3.5 g of Al2O3, what is the percent yield of Al2)3? Be sure to write and balance equation. 4Al + 302 ---> 2Al2O3 2.5 g Al x (1 mol Al / 108 g) x (2 mol Al2O3 / 4 mol Al) =

    asked by Anonymous on December 28, 2010
  2. chemistry

    Aluminum and oxygen react to form aluminum oxide. 4 Al + 3 O2 2 Al2O3 a. What is the limiting reactant if 36.4 g Al are reacted with 36.4 g of O2? O2 b. What is the theoretical yield of Al2O3, in grams? 68.8 g c. If 22.2 g of

    asked by krystal on February 14, 2012
  3. Chemistry

    Aluminum and oxygen react to form aluminum oxide. 4 Al + 3 O2 2 Al2O3 a. What is the limiting reactant if 30.7 g Al are reacted with 38.3 g of O2? b. What is the theoretical yield of Al2O3, in grams? c. If 35.3 g of Al2O3 are

    asked by Seida on February 8, 2017
  4. CHEMISTRY

    A student combusted 0.500g of purified aluminum power with excess oxygen in an oxygen atmosphere according to the reaction, 4Al(s) + 3O2(g)= 2Al2O3(s) A) What is the limiting reactant? B) How many moles of Al were used? C) How

    asked by Gina on October 29, 2014
  5. Chemistry

    Aluminum oxide is formed by reaction of excess oxygen with aluminum. 4 Al(s) + 3 O2(g) -> 2 Al2O3(s) Calculate the mass of aluminum required to form 18.2 kg of aluminum oxide if the reaction has a percent yield of 83.4%.

    asked by Cj on October 2, 2014
  6. Chemistry

    A sample weighing 3.064 g is a mixture of Fe2O3 (molar mass = 159.69) and Al2O3 (molar mass = 101.96). When heat and a stream of H2 gas is applied to the sample, the Fe2O3 reacts to form metallic Fe and H2O(g). The Al2O3 does not

    asked by Chris on October 29, 2012
  7. chemistry

    can you calculate the mass(g) of AL2O3 that is produced when 2.5g of aluminum and 2.5g of oxygen react according to this equation : 4Al(s)+3O2(g)->2Al2O3(s) im not understanding how to do this

    asked by leeann on May 13, 2015
  8. Chemistry

    how many grams of Al2O3 be obtained if 13.5 g of aluminum completely reacts with oxygen as 4Al+3O2---->2Al2O3 Molar mass of Al is 27g/mol.

    asked by Alia Misbah on May 28, 2018
  9. chemistry

    Find the mass of AlCl3 that is produced when 10.0 grams of Al2O3 react with 25.0 g of HCl according to the following equation. Al2O3(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2O(aq) 65.4 g help me ASAP.PLIS..

    asked by ZEE on January 5, 2015
  10. Electrochem

    An electrolytic cell produces aluminum from Al2O3 at the rate of ten kilograms a day. Assuming a yield of 100% a) how many moles of electrons must pass through the cell in one day? b) how many amperes are passing through the cell?

    asked by Keith on May 13, 2007

More Similar Questions