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1 April, 00:38

A student weighs out 1.026 grams of potassium hydrogen phthalate (KHP) and quantitatively transfers the KHP to a 100 mL volumetric flask. What is the concentration of KHP in the flask after the KHP had been dissolved and the flask filled correctly stepwise with swirling to the calibration mark? Note: Use a molar mass of 204.23 g/mol for KHP Your Answer:

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  1. 1 April, 01:25
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    1.026 g/204.23 g/mole = 0.00502 mole

    0.00502/0.1 L = 0.0502 molar
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