The K_a for H₂PO₄− is 6.2 × 10−⁸.What volume of 0.10 M NaOH must be added to 0.50 L of 0.30 M H₂PO₄− to make a pH = 7.50 buffer?

Name: The K a for H 2 PO 4 − is 6.2 × 10− 8 .What volume of 0.10 M NaOH must be added to 0.50 L of 0.30 M H 2 PO 4 − to make a pH = 7.50 buffer?
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The Answer of The K_a for H₂PO₄− is 6.2 × 10−⁸.What volume of 0.10 M NaOH must be added to 0.50 L of 0.30 M H₂PO₄− to make a pH = 7.50 buffer?

The Ka for H2PO4− Is 6

The K_a for H₂PO₄− Is 6