calculate the weight of each of the phospahte buffercomponents that you are goin

Question

calculate the weight of each of the phospahte buffercomponents that you are going to use to make the phosphate bufferin part I of the experiment. prepare 300 ml of 0.05M of KH2PO4 and 300 ml of 0.05MK2HPO4 . KH2PO4 =136.09 gmw   K2HPO4= 174.18 gmw Use graduated cylinders to measure the 200 ml of watersolution calculate the weight of each of the phospahte buffercomponents that you are going to use to make the phosphate bufferin part I of the experiment. prepare 300 ml of 0.05M of KH2PO4 and 300 ml of 0.05MK2HPO4 . KH2PO4 =136.09 gmw   K2HPO4= 174.18 gmw Use graduated cylinders to measure the 200 ml of watersolution

Explanation / Answer

300mL of 0.05M=mol/L KH2PO4(136.09g/mol) .05M=#mol/0.300L .3*.05=.015mol .015mol*136.09g/1mol=2.041g KH2PO4 300mL of 0.05M K2HPO4(174.18g/mol) .05M=#mol/0.300L .3*.05=.015mol .015mol*174.18g/1mol=2.041g

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