12 – A solution of 0.060 M NaF (75 mL) is mixed with 0.15 M Sr(NO3)2 (25 mL). Calculate the concentrations of each ion after equilibrium is achieved given Ksp for SrF2 = 2.0 x 10-10.Hint: The ion exchange reaction to produce SrF2 can be considered to go to completion before equilibrium is reestablished starting from the products, much as we’ve done for titration calculations at the equivalence point
13 – a) Calculate the molar solubility of hydroxyapatite given Ksp = 2 x 10-59.b) Calculate the molar solubility of hydroxyapatite in a buffered solution of pH 4.0.You’ll need to find the formula for hydroxyapatite and its solvation reaction in order to write the equilibrium constant expression.
12 – A solution of 0.060 M NaF (75 mL) is mixed with 0.15 M Sr(NO3)2...
HELP PLEASE 5 – Calculate the concentrations of H+, HCO3- and CO32- in a 0.025 M H2CO3 solution. 6 – Classify the following as a Lewis acid, Lewis base, both or neither:CO2, H2O, I-, SO2, NH3, OH-, H+, BCl37 – 7-Calculate the pH of a solution that is 0.20 M NH3 and 0.30 M NH4Cl.8 – 8-The pH of blood plasma is 7.40. Assuming the principal buffer system is HCO3-/H2CO3, calculate the ratio [HCO3-]/[H2CO3] . 9 – A 0.2688 g...
In need of help 1 – List four factors that affect the strength of an acid. All four may not apply to every acid. 2 – Calculate [OH-] for a 1.4 x 10-3 M HCl solution. 3 – Calculate the pH of an aqueous solution at 25 ̊C at is 0.34 M in phenol (Ka = 1.3 x 10-10) .4 – Calculate the concentration at which a monoprotic acid with Ka = 4.5 x 10-5 will be 2.5% ionized. (The...
96 mL of 0.080 M NaF is mixed with 32 mL of 0.20 M Sr(NO3)2. Calculate the concentration of Sr2+ in the final solution. Assume volumes can be added. (Ksp for SrF2 = 2.0 ×10-10)
A volume of 69 mL of 0.080 M NaF is mixed with 23 mL of 0.20 M Sr(NO3)2. Calculate the concentrations of the following ions in the final solution.(Ksp for SrF2 2.0 × 10−10) [NO3−] M [Na+] M [Sr2+] M [F−] M
Be sure to answer all parts A volume of 75 mL of 0.060 M NaF is mixed with 25 mL of 0.15 M Sr(NO3)2. Calculate the concentrations of the following ions in the final solution.(Kgp for SrF 2.0x10-10) NOj [Na ] 045 [Sr+] 016 1.1E-4
a) What is the molar solubility of FeF2 in a 0.02M solution of NaF? b) What is the Ksp for SrF2, given that 1.1 x 10-1 g/L dissolves in water? c) What is the molar solubility of Fe(OH)2 in water and in a solution buffered at pH = 10.0, given that the Ksp = 7.9 x 10-16?
solution 15 made containing 7.8 x 10-3 (Sr(NO3)2) 25.) suppose and 8.3 x10-2 NaF (aq). Calculate Q and determine wheter a precipate lydstupem of SrFe will form. Ksp of SrF2= 2.8x10-9 ppt forms forms no ppt CQ = 2.0 110-4 pot forms ppt no ppt e Q= 6.1810-4 a. Q = 5.0 x10-5 b Q = 5.0 X1D-5 d Q = 6.1 810-4
Suppose a solution is made containing 7.3 x 10-3 M Sr(NO3)2(aq) and 8.3 x 102 M NaF (aq). Calculate Q and determine whether a precipitate of SrF2 (s) will form. (In other words, which of the following is entirely correct?) Ksp of SrF2 = 2.8 x 10-9 a. Q = 5.0 x 105, ppt forms b. Q = 5.0 x 10-5, no ppt c. Q = 2.0 x 104 ppt forms d. Q = 6.1 x 104.ppt forms e. Q...
Be sure to answer all parts. A volume of 87 mL of 0.080 M NaF is mixed with 29 mL of 0.20 M Sr(NO3)2. Calculate the concentrations of the following ions in the final solution. (Kg for SrF2 = 2.0 x 10-10.) [NO] 0.0070 [Na] [Sr2+] x 0.00074 x
1))))Weak Base Titration: At the Equivalence Point a))A 11.30 mL solution of 2.47 M pyridine (C5H5N, a weak base) is titrated to the equivalence point with 22.4 mL of HNO3. What is the pH at the equivalence point? Kb for pyridine is 1.7 X 10-9. b))))Click on all of the dominant species that you would expect to find in solution at the equivalence point. Do not include H3O+ and OH-ions unless they are coming from another source other than the...