Please do both parts of a question otherwise don't Phosphate standards will be prepared in the range from (ie.) 0.200, 0.500, 1.00, 2.00, 3.00 and 4.00µg/mL in dH2O using the stock KH2PO4 solution (~50.00 µg/mL) in 50.00 ml volumetric flasks usingvolumetric syringes and pipettes ranging in volume from approx. 0.200 to 4.00 mL.*note : this range is a suggestion. Anything from 0.2 to 5.0 will work, as long as all 6 standards aredistributed somewhat evenly between 0.2 and 5 µg/mL Dissolve 219 .5 mg anhydrous KH2PO4 in distilled water and dilute to 1000 mL;(record the actual amount that was weighed so you know the exact concentration!)1.00 ml = 50.0 µg PO,3 P. Store in locker.Mass KH2PO4 in 1000.0 mL[KH2PO4] (µg/mL) in 1000.0 mL

Initial concentration of stock solution = M1=50 ug/mL Volume of stock solution to be used = V1…

Answered: KH2PO4] (µg/mL) in 1000.0 mL

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Chemistry

KH2PO4] (µg/mL) in 1000.0 mL

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.108E

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Question

Please do both parts of a question otherwise don't

Phosphate standards will be prepared in the range from (ie.) 0.200, 0.500, 1.00, 2.00, 3.00 and 4.00
µg/mL in dH2O using the stock KH2PO4 solution (~50.00 µg/mL) in 50.00 ml volumetric flasks using
volumetric syringes and pipettes ranging in volume from approx. 0.200 to 4.00 mL.
*note : this range is a suggestion. Anything from 0.2 to 5.0 will work, as long as all 6 standards are
distributed somewhat evenly between 0.2 and 5 µg/mL

Dissolve 219 .5 mg anhydrous KH2PO4 in distilled water and dilute to 1000 mL;
(record the actual amount that was weighed so you know the exact concentration!)
1.00 ml = 50.0 µg PO,3 P. Store in locker.
Mass KH2PO4 in 1000.0 mL
[KH2PO4] (µg/mL) in 1000.0 mL

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