Bureau of Chemistry

pH of milk is 6.7 - 6.9
pH of curd is 4.5 - 5.5
curd is acidic due to lactic acid.
curd is more acidic than milk

Sugar we use in the food is sucrose having chemical formula
C¹²H²²O¹¹

Antilog(negative value)

Check antilog of -9.2471

*write given figure in two parts as -9 & -.2471
*add -1 and +1 as
-9 -.2471
-1 +1
________________
-10 .7529
*now check antilog of 75 under 2(difference)
and then under 9(mean difference). add both
values.
*it is 5661
*put decimal after first digit and write power
of 10
* it is 5.661 x 10–¹⁰