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Calculate the concentration of free Ba2+ when 26.00 mL of 0.2000 M EDTA is added to...
3EO L Calculate pBa when 50.00 mL 0.1 M EDTA is added to 50.00 mL of 0.1 M Ba. For the buffered pH of 10, a 0.30. Kr= 7.59 x 10 for BaY2 E EE moles of EDTA 9:IM(50mL -N A) 1.30 B 07.88 :0.1 (5omL) 6 mmo auuug = 0.05 0.015.Y C) 4.59 D) 7.36 (CT 4.33 Answer: E Intermediate 3SS2 Molar D) Calculate pBa when 75.00 mL 0.1 M EDTA is added to 50.00 mL of 0.1 M...
Calculate the pH during the titration of 20.00 mL of 0.1000 M CH3COOH(aq) with 0.2000 M NaOH(aq) after 2.5 mL of the base have been added. Ka of acetic acid = 1.8 x 10-5. QUESTION 9 Calculate the pH during the titration of 30.00 mL of 0.1000 M ethylamine, C2H5NH2(aq), with 0.1000 M HCl(aq) after 26 mL of the acid have been added. Kb of ethylamine = 6.5 x 10-4. QUESTION 10 Calculate the pH during the titration of 20.00...
Calculate the pH during the titration of 20.00 mL of 0.1000 M HBrO(aq) with 0.2000 M NaOH(aq) after 2 mL of the base have been added. Ka of hypobromous acid = 2.3 x 10-9.
Calculate the pH during the titration of 20.00 mL of 0.1000 M HNO2(aq) with 0.2000 M NaOH(aq) after 6.5 mL of the base have been added. Ka of nitrous acid = 7.1 x 10-4. Show with ICE table and equations
4. 50.0 mL of 0.00200 M Ca2 solution buffer at pH 10.0 is titrated with 0.00200 M EDTA. At equivalence point (i.e. 50.0 mL EDTA has been added), what is the equilibrium concentration of Ca2, [Ca2], and what is the pCa? The formation constant of CaY, Kaa 5.0 x 1010, and α4 of EDTA at pH 10.0 is 0.35 4. 50.0 mL of 0.00200 M Ca2 solution buffer at pH 10.0 is titrated with 0.00200 M EDTA. At equivalence point...
To determine the Ca^2+ concentration in water sample, a standard EDTA solution of 0.01988 M was used to titrate 25 ml. of the sample solution with the presence of an ammonium buffer (pH 10). If 15.80 ml. of the standard EDTA was used to reach the end point, calculate the molar concentration and the ppm concentration of the unknown Ca^2+ (atomic weight of Ca = 40.08g/mole) solution The amount of 0.2915g of benzoic acid was dissolved in 100 ml. of...
Copy of Calculate the pH during the titration of 20.00 mL of 0.1000 M HNO2(aq) with 0.2000 M NaOH(aq) after 7 mL of the base have been added. Ka of nitrous acid = 7.1 x 10-4.
QUESTION 10 Calculate the pH during the titration of 30.00 mL of 0.1000 M methylamine, (CH3)NH2(aq), with 0.1000 M HCl(aq) after 12 ml of the acid have been added. Kp of methylamine - 3.6 x 10-4 1 points Save Answe
In order to determine the hardness of α solution, a small amount of Eriochrome 2. Black T is added to 100 ml of sample. After addition of I1.2 ml of D.01 M EDTA solution, the color of the solution changes from red to blue. What is the hardness concentration in moles/liter and mg/liter cas CaCO,? Show that [HgOH'] is negligible in Example 5-2 3. 4. A water, pH 5.5, is dosed with 80 mg/liter of alum,C.co,-1x10-4. (a) How much hydrated...
20. If 10 mL of 0.05 M NaOH is added to a 20 mL solution of 0.1 M NaNO2 and 0.1 M HNO2, what will be the pH of the resultant solution? Assume that volumes are additive. Ka for HNO2 = 7.1x10-4. 21. At 25°C, 50.0 mL of 0.50 M NaOH(aq) is added to a 250 mL aqueous solution containing 0.30 M NH3 and 0.36 M NH4Cl. What is the pH of the solution after the addition of the base?...