Problem: What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with each pH value?pH = 2.60

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We are asked for the mass of HClO4 that should be present in a 0.600 L solution to obtain a pH value of 2.60. 

Remember that HClO4 is a strong, monoprotic oxyacid. It’s a strong oxyacid since there are 3 more O than H in the formula. 


Recall that strong acids completely dissociate in water and that acids donate H+ to the base (water in this case). The dissociation of HClO4 is as follows:


HClO4(aq) + H2O(l)  H3O+(aq) + ClO4(aq)


For strong acids, an ICE table is not necessary because it can be assumed that all of the acid or base will dissociate. 


The concentration of the strong acid is the same as its dissociated particles.


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Problem Details

What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with each pH value?

pH = 2.60

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Our tutors have indicated that to solve this problem you will need to apply the Strong Acid-Base Calculations concept. If you need more Strong Acid-Base Calculations practice, you can also practice Strong Acid-Base Calculations practice problems.