chemistry

How many atoms of carbon are needed to produce 0.45 mol Al?

3C + 2Al2O3 4Al + 3CO2

A. 2.6 × 1026 atoms
B. 9.7 × 1024 atoms
C. 3.0 × 1022 atoms
D. 2.0 × 1023 atoms

  1. 👍 0
  2. 👎 0
  3. 👁 350
asked by emma
  1. Use the coefficients in the the balanced equation.
    mols C needed = 0.45 mol Al x (3 mols C/4 mols Al) = ?
    Then you know that 1 mol C contains 6.02E23 atoms.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    How many atoms of carbon are needed to produce 0.45 mol Al? 3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C. 3.0 × 1022 atoms D. 2.0 × 1023 atoms

    asked by megan on August 19, 2016
  2. chemistry help!!! please!!! DrBob222 I need you!!

    How many atoms of carbon are needed to produce 0.45 mol Al? 3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C. 3.0 × 1022 atoms D. 2.0 × 1023 atoms I'm really very stuck with this question. please help me!!!

    asked by emma on August 20, 2016
  3. chem

    For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4Al(s)+3O2 (g)-->2Al2O3 (s) 4 mol Al 2.6 mol O2

    asked by natash on October 1, 2008
  4. Chemistry

    Aluminum reacts with oxygen gas to produce aluminum oxide. How many moles of aluminum oxide would you expect to produce if you reacted 14.5 moles of oxygen gas with excess aluminum? 4Al +3O2 --> 2Al2O3 14.5 mol O2 x 4 mol Al / 3

    asked by Sydney on May 29, 2017
  5. Chemistry

    Given 2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide? How do I find heat of formation from standard enthalpy change? I know how to do it when I'm given

    asked by Chris on January 31, 2007
  1. Chemistry

    Given the following: 4Al+ 3O2---> 2Al2O3 Which reactant is limiting if 0.32 mol Al and 0.26 mol O2 are available? I got 0.24 mol Al and 0.35 mol O2 when I did my work. Therefore Al is limiting. Can you tell me if I am right.

    asked by Kylee on June 28, 2017
  2. Chemistry

    4Al + 3O2->2Al2O3(triangle)H= -1669kj/mol 2Fe + O2 ->2FeO (triangle)H= -822 kj/mol Determine enthalpy change?

    asked by Edna on June 6, 2009
  3. Chemistry

    Aluminum metal is used in many products. It quickly reacts with oxygen in the reaction 4Al (s) + 3O2 (g)--> 2Al2O3 (s). Which component is different on each side of the equation arrow? a. mass b. atoms c. moles d. all are the

    asked by Will on February 16, 2011
  4. Chem

    given the balanced equation: 2Al2O3(s)-->4Al(s)+302(g) What is the total number of moles of O2 that are produced when 8.0 mol of Al2O3(s)are totally decomposed ? please help me.

    asked by Martin on January 3, 2011
  5. 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

More Similar Questions