(mmol/L)								
concentration	absorbance		H0 concentration and absorbance are related is accepted 					
2.9	0.1225							
5.8	0.2125		0.061087438	-0.090842857				
8.7	0.465							
11.6	0.551							
14.5	0.842							
17.4	1.0184							
20.3	1.113							
7	7	Total						
			a	0				
T critical 	2.446911851		b	0.06				
t	1.487095539		9.1568	0.502				
			r	0.9926				
								
								
			0.054822414	0				
			0.001925361	#N/A				
			0.992653897	0.066065408				
			810.7596011	6				
			3.538672232	0.026187829