Question

In: Chemistry

In each of the following questions, assume that there is no volume change when HCl is...

In each of the following questions, assume that there is no volume change when HCl is added to water in part (a) or the phosphate buffer in part (c).

(a) Calculate the pH when 0.029 moles of HCl are added to 1.000 liter of water.

(b) What is the difference between the pH of pure water (pH 7.00) and the pH of the solution after HCl was added?

(c) Calculate the pH when 0.029 moles of HCl are added to 1.000 liters of a buffer containing 0.396 M KH2PO4 and 0.201 M K2HPO4.

(d) The pH before the HCl was added is equal to 6.913. What is the difference between the pH before adding the HCl and after adding the HCl?

Solutions

Expert Solution


Related Solutions

Calculate the change in pH that occurs when 0.00100 mol of gaseous HCl is added to...
Calculate the change in pH that occurs when 0.00100 mol of gaseous HCl is added to a buffer solution that is prepared by dissolving: A) 4.92g of sodium acetate (molar mass = 82.03g/mol) in 250 mL of 0.150 mol/L of acetic acid solution? B) 0.492g of sodium acetate (molar mass = 82.03g/mol) in 250 mL of 0.0150 mol/L of acetic acid solution? Assume no change in volume upon addition of either the sodium acetate or HCl. (Ka for acetic acid...
calculate the change in pH that occurs when 0.00100 mol of gaseous HCL is added to...
calculate the change in pH that occurs when 0.00100 mol of gaseous HCL is added to a buffer solution that is prepared by dissolving 4.92 g of sodium acetate in 250 ml of 0.150 mol L^-1 of acetic acid solution? Assume no change in volume upon addition of either sodium acetate of HCL (Ka=1.8x10^-5)
The following questions relate to the acid-base neutralization of HCl and NaOH HCl (aq) + NaOH...
The following questions relate to the acid-base neutralization of HCl and NaOH HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l) a. A 25.00 mL sample of HCl is titrated with 0.1045 M NaOH using phenolphthalein as an indicator. The buret containing NaOH initially reads 0.30 mL and reads 48.29 mL at the end point. Determine the concentration of the HCl solution in mol/L. Show ALL work. b. If 50.0 mL of 0.500 M HCl at 25.0°C is...
1a)Calculate the change in pH when 8.00mL of 0.100 M HCl is added to 100.0mL of...
1a)Calculate the change in pH when 8.00mL of 0.100 M HCl is added to 100.0mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). b)Calculate the change in pH when 8.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
Determine the pH change when 0.093 mol HCl is added to 1.00 L of a buffer...
Determine the pH change when 0.093 mol HCl is added to 1.00 L of a buffer solution that is 0.497 M in HNO2 and 0.311 M in NO2-. pH after addition − pH before addition = pH change = ___________________ Determine the pH change when 0.115 mol KOH is added to 1.00 L of a buffer solution that is 0.457 M in HNO2 and 0.256 M in NO2-. pH after addition − pH before addition = pH change =_____________
Calculate the pH change that results when 12 mL of 2.8 M HCl is added to...
Calculate the pH change that results when 12 mL of 2.8 M HCl is added to 580. mL of each of the following solutions. Use the Acid-Base Table. Please see pH changes - part a and b and pH changes - part c and d for assistance. (a) pure water (b) 0.10 M CH3COO− (c) 0.10 M CH3COOH (d) a solution that is 0.10 M in each CH3COO− and CH3COOH.
a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to...
a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). b) Calculate the change in pH when 5.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
calculate the change in pH when 3.00 ml of 0.1 M HCL is added to 100...
calculate the change in pH when 3.00 ml of 0.1 M HCL is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. Calculate the change in pH when 3.00 ml of 0.1 M NaOH is added to the original buffer solution.
1. What is the change in pH when 10.0 mL of 0.010 M HCl is added...
1. What is the change in pH when 10.0 mL of 0.010 M HCl is added to 500 mL of pure water. 2. What is the change in pH when 10.0 mL of 0.010 M NaOH is added to 500 mL of pure water.
Calculate the pH change that results when 15 mL of 2.6 M HCl is added to...
Calculate the pH change that results when 15 mL of 2.6 M HCl is added to 600. mL of each of the following solutions. (See the appendix.) (a) pure water    (b) 0.10 M CH3COO? (c) 0.10 M CH3COOH (d) a solution that is 0.10 M in each CH3COO? and CH3COOH. Table 3 An Acid-base table Acid Name ConjugateAcid Ka pKa Conjugate Base Base Name perchloric acid HClO4 >>1 < 0 ClO41- perchlorate ion hydrohalic acid HX (X=I,Br,Cl) >>1 <...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT