STD 6 SCIENCE PRAYOG 9 FULL SOLUTION

(-6) * 9 = ?

An aqueous solution of HCI is 10^(-9) M HCI . The pH of the solution should be

-9-(-6) = ?

(-9) - (-6) = ?

(-9) x 6 + (-9) x 4 = ?

Write the full forms of the following as they occur in biology: (i) STD (ii) AIDS (iii) HIV

How may millilitres of a 9 N H_(2)SO_(4) solution will be required to neutralize completely 20mL of a 3.6 N NaOH solution ?

A : pH of 10^(-8) M HCI solution is approx 6.9 R : HCI is a strong acid.

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