HW QUESTIONS WHICH I CANT DO?
The phospate content of a laundry washing powder (detergent) was determined as follows, 6.92g of the powder was dissolved in approximately 500mL water. A slight excess of a solution of magnesium chloride in an ammonia, ammonium chloride buffer was added to this with stirring until precipitation was complete.The precipitate was filtered off and dried; its mass was found to be1.83g. The precipitate is pure magnesium ammonium phosphate hexahydrate of formula Mg(NH4)PO4.6H2O.
CALCULATE THE NUMBER OF MOLES OF PHOSPHORUS IN THE PRECIPITATE ANDHENCE THE PERCENTAGE PHOSPHORUS IN THE ORIGINAL LAUNDRY POWDER.
THE PACKAGE IN THIS LAUNDRY POWDER CAME IN CARRIED A LARGE LETTER P, meaning that its phosphorus content was less thatn 5%. IS THIS LABELLING JUSTIFIED?.
plz..help im completely lost ^^
The phospate content of a laundry washing powder (detergent) was determined as follows, 6.92g of the powder was dissolved in approximately 500mL water. A slight excess of a solution of magnesium chloride in an ammonia, ammonium chloride buffer was added to this with stirring until precipitation was complete.The precipitate was filtered off and dried; its mass was found to be1.83g. The precipitate is pure magnesium ammonium phosphate hexahydrate of formula Mg(NH4)PO4.6H2O.
CALCULATE THE NUMBER OF MOLES OF PHOSPHORUS IN THE PRECIPITATE ANDHENCE THE PERCENTAGE PHOSPHORUS IN THE ORIGINAL LAUNDRY POWDER.
THE PACKAGE IN THIS LAUNDRY POWDER CAME IN CARRIED A LARGE LETTER P, meaning that its phosphorus content was less thatn 5%. IS THIS LABELLING JUSTIFIED?.
plz..help im completely lost ^^
