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If some of the KHP was spilled on the balance pan while weighing, how will the...

If some of the KHP was spilled on the balance pan while weighing, how will the calculated molarity of the NaOH be affected (too low, too high, unaffected)? Explain.

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Answer #1

answer : too low

explanation:

when KHP was present on balance pan while weighing the NaOH it will effect the concentration of NaOH. KHP will react with NaOH forms salt from the following eqaution.

KHP + NaOH ----------------------> NaKP + H2O

so some moles of NaOH already react with KHP . the mass measured is not actual mass of NaOH . it is the mass of NaOH and salt formed from KHP. so the total mass is more than that of NaOH measured mass . apparently the mass of NaOH decreases . so moles decreases . if moles decreases moalrity also decreases

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