Answer in General Chemistry for Yash Patel #155748
March 17th, 2023
Data for the decomposition of dinitrogen monoxide on a gold surface at 1173 K are given below.
N2O –> N2 + ½ O2
Time (min)
15.0
30.0
80.0
120.0
[N2O] (mol/L)
0.0835
0.0680
0.0350
0.0220
Using a graphing calculator, plot a graph of 1/[N 2O] versus time. What is the linear regression correlation constant, r? Make sure to include at least 3 significant digits.(1)
The linear regression correlation constant is
Σ X = 250 , Σ Y = 0.2085 ,Σ XY = 8.7325 ,
Σ X2 = 21925 , Σ Y2 = 0.01330525
r = “frac{nu2022u03a3XY – u03a3Xu2022u03a3Y}{sqrt{[nu03a3X^2-(u03a3Y^2)]u2022[nu03a3Y^2-(u03a3Y^2)]}}”
r = “frac{4u00d78.7325-(245u00d70.2025)}{sqrt{[4u00d721924-245^2]u2022[4u00d70.01330525-0.2085^2]}}”
r= -0.9834