Science

What is the percent yield of copper when 14.0g of Cu2O reacts with Cu2S and 12.3 grams of copper is recovered? Round to two decimal places and do not use a percent sign in your answer.

2Cu2O + Cu2S → 6Cu + SO2

  1. 👍 0
  2. 👎 0
  3. 👁 50
asked by Mista
  1. What is 12.3/14.0 * 100. Round to two decimal places. 85.86?

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry. please help drbob222

    One of the reactions involved in the smelting of copper sulfide ores involves copper (I) oxide and copper (I) sulfide: 2Cu2O2 + Cu2S ---> 6Cu + SO2 Assuming that 35.00 g of copper (I) oxide is heated with 25.00 g of copper (I)

    asked by Rose on December 7, 2014
  2. chemistry 21

    13. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) „_ 2Cu(s) + SO2(g) If the reaction of 0.540 kg of copper(I) sulfide with excess oxygen produces 0.140 kg of copper

    asked by lee on January 31, 2010
  3. chemistry

    One of the reactions involved in the smelting of copper sulfide ores involves copper(I) oxide and copper (I) sulfide: 2Cu2O(solid) + Cu2S(solid) ---> 6Cu(solid) + SO2(gas) Assuming that 35.00 g of copper (I) oxide is heated with

    asked by Anonymous on December 6, 2014
  4. Chemistry

    help - confusion :( The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2 Cu2O + O2 --> 4CuO The change in enthalpy upon reaction of 75.30 g of Cu2O(s) is -76.83 kJ. Calculate the

    asked by DC on November 3, 2013
  5. Chemistry

    The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2 Cu2O + O2 --> 4CuO The change in enthalpy upon reaction of 75.30 g of Cu2O(s) is -76.83 kJ. Calculate the work, w, and energy

    asked by chemgeek on November 4, 2013
  6. Chemistry

    What is the percent yield if 4.65g of copper is produced when 1.87g of aluminum reacts with an excess of copper(II) sulfate? 2Al(s)+3CuSO4(aq)==>Al2(SO4)3(aq)+3Cu(s)

    asked by Keith on March 27, 2010
  7. Chemistry:Important!!!!!!!

    A student begins with 9.7 mL of a 0.26 M Cu(NO3)2 solution and performs copper cycle lab. She recovers 0.075 grams of copper metal. A) What is the Theoretical Yield B) What is the Actual Yield C) What is the Percent Yield

    asked by B on February 10, 2014
  8. Chemistry

    A student begins with 9.7 mL of a 0.26 M Cu(NO3)2 solution and performs copper cycle lab. She recovers 0.075 grams of copper metal. A) What is the Theoretical Yield B) What is the Actual Yield C) What is the Percent Yield

    asked by C on February 10, 2014
  9. Chemistry

    I would really appreciate some help with this thermochemistry problem! I'm really confused as to why I keep getting the wrong answers... I have gotten w=-1.305kj and energy change = 78.13kj... both of which were marked wrong.

    asked by DC on November 3, 2013
  10. chem

    consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen

    asked by julia-Drboob22 on November 15, 2010

More Similar Questions