Determination of Amount of Phosphorus Content in Different Brands of Fertilizers Proposal
Chemistry
Investigative study
Title: Determination of amount of phosphorus content in different brands of fertilizers
Objective: To determine the amount of phosphorus in different brands of fertilizers
Apparatus:
Beakers(250 cm3) ------------------------------------------------------------------------------- 3
Measuring cylinder(10cm3)------------------------------------------------------------------- 1
Measuring cylinder(100cm3)----------------------------------------------------------------- 1
Suction filtration set-up -----------------------------------------------------------------------1
Glass rod ------------------------------------------------------------------------------------------1
Spatula ---------------------------------------------------------------------------------------------1
Filter paper --------------------------------------------------------------------------------Several
Stand and Clamp ---------------------------------------------------------------------------------1
Chemicals:
Magnesium sulphate-7-hydrate--------------------------------------------------------------18g
2.0M ammonia solution-------------------------------------------------------------------500cm3
75% propanal-2-ol----------------------------------------------------------------------------20cm3
Distilled water--------------------------------------------------------------------------------a bottle
Fertilizer A,B and C ------------------------------------------------------------------------15g each
Procedures: 1. Weigh about 3 grams of fertilizer and dissolve it in about 50cm3 of distilled water in a 250cm3 beaker. 2. Weigh 50cm3 of 2.0M ammonia solution with a 100cm3 measuring cylinder and pour it into the beaker with dissolved fertilizer. 3. Measure about 6 grams of Magnesium sulphate-7-hydrate and dissolve it in 250cm3 of distilled water in a 250cm3 beaker. 4. Add the dissolved Magnesium sulphate-7-hydrate slowly with stirring
Investigative study
Title: Determination of amount of phosphorus content in different brands of fertilizers
Objective: To determine the amount of phosphorus in different brands of fertilizers
Apparatus:
Beakers(250 cm3) ------------------------------------------------------------------------------- 3
Measuring cylinder(10cm3)------------------------------------------------------------------- 1
Measuring cylinder(100cm3)----------------------------------------------------------------- 1
Suction filtration set-up -----------------------------------------------------------------------1
Glass rod ------------------------------------------------------------------------------------------1
Spatula ---------------------------------------------------------------------------------------------1
Filter paper --------------------------------------------------------------------------------Several
Stand and Clamp ---------------------------------------------------------------------------------1
Chemicals:
Magnesium sulphate-7-hydrate--------------------------------------------------------------18g
2.0M ammonia solution-------------------------------------------------------------------500cm3
75% propanal-2-ol----------------------------------------------------------------------------20cm3
Distilled water--------------------------------------------------------------------------------a bottle
Fertilizer A,B and C ------------------------------------------------------------------------15g each
Procedures: 1. Weigh about 3 grams of fertilizer and dissolve it in about 50cm3 of distilled water in a 250cm3 beaker. 2. Weigh 50cm3 of 2.0M ammonia solution with a 100cm3 measuring cylinder and pour it into the beaker with dissolved fertilizer. 3. Measure about 6 grams of Magnesium sulphate-7-hydrate and dissolve it in 250cm3 of distilled water in a 250cm3 beaker. 4. Add the dissolved Magnesium sulphate-7-hydrate slowly with stirring