Given for this problem: Element R has a molecular weight of 72.00   Note!! Element R is not a real element. Element A has a molecular weight of 22.00   Note!! Element A is not a real element. Given the reaction  2R + 3A  =   R2A3 q = mass X specific heat X (Tfinal - Tinitial) specific heat of water is 4.184 J/g oC % Yield = (actual/theoretical) X 100 Given this hypothetical activity series: Li > Na > Mg > A > Al > Zn > H > Cu > R > Ag > Pt Given the reaction 2R + 3A  =  R2A3   Please Read Carefully.  It is R2A3 !!!  How many grams of element R would it take to get 400 grams of R2A3.  Read carefully, it is R2A3 !!

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Given for this problem:

Element R has a molecular weight of 72.00   Note!! Element R is not a real element.

Element A has a molecular weight of 22.00   Note!! Element A is not a real element.

Given the reaction  2R + 3A  =   R2A3

q = mass X specific heat X (Tfinal - Tinitial)

specific heat of water is 4.184 J/g oC

% Yield = (actual/theoretical) X 100

Given this hypothetical activity series:

Li > Na > Mg > A > Al > Zn > H > Cu > R > Ag > Pt

Given the reaction 2R + 3A  =  R2A3   Please Read Carefully.  It is R2A3 !!!

 How many grams of element R would it take to get 400 grams of R2A3

Read carefully, it is R2A3 !!

 

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