. _ 
ie Mead " 
226 Cc. W. R. POWELL. 
1. Concentration of sulphuric acid -58 N. Concentration of 
manganese sulphate 017 N. (a) ‘0731 N.; (b) O113N. 
Temperature 15° C. 
t n x (a—x) (b-2) k, k, 
a, ohare a 0731 0113 ae a 
5. ie AED °0054 ‘0677 °0059 “2 -000185 
f 13°71 -0067 0664 -0046 -129 "000185 
il 15:0 -0081 ‘0650 -0032 "114 -000168 
16 16°8 "0094 "0637 -0019 °110 -000166 
22 18:2 70104 = =:0627 "0009 "115 "000175 
oc 19°5 "0113 0618 
k, = velocity constant (first order). k, = velocity constant 
(second order). 
2. In the second experiment the concentration of sucrose 
was halved. 
Concentration of sulphuric acid ‘58 N. Concentration of man- 
ganese sulphate ‘017 N, (a) ‘0365 N.; (b) ‘0113 N. Temp. 15°C, 
t n x (a—x) (b-2) k, k, 
fee 4+3 iy "0365 "0113 ft: 3 
3 8:3 "0022 "0343 “0091 ‘0719 - 000702 
5) 2 "0032 0333 0081 -0674 -000191 
i Jide "(0040 -0325 (0073 -0625 -000182 
10. 13:4 "0050 -0315 0063 °0582 . “MO0Iiag 
Ip. 16:0 "0064 =-0301 70049 -0559 -000170 
20 dy-2 "0074 = -0291 "0039  -0539 “<O00taG 
a0 | 20:7 70090 =-0275 0023 -0528 — -000I73 
40 22°5 “0100 ‘0265 ‘0013. :0537 -O@OTES 
oc 24-9 0113 "0252 
3. In the third experiment the concentration of potassium 
permanganate was halved. 
Concentration of sulphuric acid ‘58 N. Concentration of man- 
ganese sulphate ‘017 N. (a) ‘0731 N.; (b) :0056 N. Temp. 15° C. 
t n a (a—-x) (b—«x) ky ke 
aoe 3) «Loe Had 0731  -0056 a we 
a) 190 70019 +0712 “0037 “0138 - -O0GiRaT 
5 21:0 "0030  -0701 -0026 ~-0150  ~ -OGO2i 
7 UNea® 70035 «= 0696 = 0021 »=-0139 | -00OTEa 
10\.2 23°2 70041 -0690 . >-0015 | -0133 ..,-000iiag 
15 24-2 70046 = 0635 = 0010 = 0118 = -000164 
oC 26:0 0056 ‘0675 
