DETERMINATION OF TOTAL SUSPENDED AND DISSOLVED SOLIDS BY FILTRATION AND EVAPORATION - AND DETERMINATION OF pH

Question 1

2 steps

Answer 1

measurement of total suspended solids by filtration

measurement of total dissolved solids by evaporation

Question 2

first step

Answer 2

fill volumetric flask with known volume of water

Question 3

once water is in flask

Answer 3

find mass of the filter paper (with fine pore size)

Question 4

mass of filter paper found

Answer 4

water poured through filter paper

filter paper allowed to dry and reweighed

Question 5

how to find ppm of suspended solids

Answer 5

g per 300 cm cubes ->
g per L ->
mg per L (ppm:)

Question 6

first step to find dissolved solids

Answer 6

mass of clean, dry beaker recorded

Question 7

mass of beaker found

Answer 7

known volume of filtered water poured into the beaker

Question 8

water in beaker

Answer 8

placed on heating mantle and heated gently until all of the water had evaporated

Question 9

all water evaporated off

Answer 9

beaker allowed to cool and reweighed

Question 10

measurement of pH

Answer 10

done using a pH meter