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Chapter 9: Q3IQ (page 200)

Does the pH change in the right direction when HCl is added?

Short Answer

Expert verified

No, the pH does not change in the right direction when HCl is added.

Step by step solution

01

Explanation

The chemical used here is Tris. Tris is known to be a buffer solution. Buffer solutions resist changes in pH as buffer consumes added bases or acids. Therefore, the pH does not change though HCl is added.

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Most popular questions from this chapter

Calculate the pH of a solution prepared by mixing 0.0800mol of chloroacetic acid plus0.0400mol of sodium chloroacetate in1.00L of water.

(a) First do the calculation by assuming that the concentrations of HA andA- equal their formal concentrations.

(b) Then do the calculation, using the real values of and in the solution.

(c) Using first your head, and then the Henderson-Hasselbalch equation, find the pH of a solution prepared by dissolving all the following compounds in one beaker containing a total volume of1.00L:0.180molCICHCOO2H,0.020molCICHCHO2Na20.080molHNO3,and0.080molCa(OH)2. Assume thatCa(OH)2 dissociates completely.

Find the pH if only 6.0 instead of 12.0 mL HCl were added.

Calculate how many milliliters of 0.626MKOHshould be added to 5.00g of MOBS (Table 9-2) to give a pH of 7.40.

Neglecting activity coefficients, calculate the pHof 1.0脳10-2MKOH

Write the Henderson-Hasselbalch equation for a solution of formic acid. Calculate the quotient [HCO2-]/[HCO2H]at (a) pH3.000; (b) pH3.744; (c)pH4.000.
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