The concentration of Ba(103)2 in H2O at 35°C (Ksp = 3.00 x 10- %3D Ba(103)2 (s) - Ba²* + 2103 5.23 x 10-4 M 6.69 x 10-4 M 2.37 x 10 4 M 9.09 x 10-4 M
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- The concentration of Ba(103)2 in H20 at 35°C (Ksp = 3.00 x 10-9 ) Ba(103)2 (s) - Ba2+ +2103 O 5.23 x 10-4 M 6.69x104 M O 2.37 x 104 M O 7.32 x 10-4 M 9.09 x10 4 M1) Listen -5 The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Cag(PO4)2] solution. You may ignore the additional volume coming from the Ca3(PO4)2 solution to make the calculation simpler. Calculate the new sulfate (SO42) ion concentration at equilibrium with this common ion effect. 6.40 x 10-5 5.25 x 10-5 6.21 x 10-5 5.44 x 10-5 201591..docx LAB EXP. #3 -..docx Show All1) Listen The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Now that you have calculated the new equilibrium constant (K) with this common ion effect then which way will the chemical equilibrium shift? need more information to be determined at equilibrium chemical equilibrium will shift to the right first and then to the left chemical equilibrium will shift to the right chemical equilibrium will shift to the left 201591..docx LAB EXP. #3 -..docx Show All
- Hydroxyapatite, Ca₁(PO)(OH)₂, has a solubility constant of Ksp = 2.34 × 10-5⁹, and dissociates according to Ca₁0(PO4)(OH)₂ (s) = 10 Ca²¹(aq) + 6 PO³(aq) + 2 OH¯ (aq) Solid hydroxyapatite is dissolved in water to form a saturated solution. What is the concentration of Ca²+ in this solution if [OH ] is fixed at 5.90 × 10-4 M? [Ca²+] = MKsp for BaCrO4 is 1.17x10^-10Hydroxyapatite, Ca,(PO)(OH)₂, has a solubility constant of K-2.34 x 10-59, and dissociates according to Cao (PO)(OH)₂ (s) = 10 Ca² (aq) + 6PO (aq) + 2OH(aq) Solid hydroxyapatite is dissolved in water to form a saturated solution. What is the concentration of Ca²+ in this solution if JOH is fixed at 8.30 x 10M? |Ca²1 M
- Hydroxyapatite, Ca,(PO4),(OH)₂, has a solubility constant of Ksp = 2.34 x 10-59, and dissociates according to Cao (PO)(OH)₂ (s)10 Ca2 (aq) + 6PO (aq) + 2OH (aq) Solid hydroxyapatite is dissolved in water to form a saturated solution. What is the concentration of Ca2+ in this solution if [OH] is fixed at 3.40 x 10-4 M? [Ca²+] = MSolution 1 Solution 2 Solution 3 Solution 4 Solution 5 Concentration iron(III) nitrate 0.00200 0.00200 0.00200 0.00200 0.00200 [Fe(NO3)3] (M) Concentration potassium thiocyanate 0.00200 0.00200 0.00200 0.00200 0.00200 [KSCN] (M) Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe3+] (M) 0.00100 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 0.000400 0.000200 Absorbance 0.269 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2+] (M) 0.000198 0.000141 0.000113 0.0000765 0.000038 Equilibrium constant Kc Average KcWhat is the solubility of CdS (Ksp = 1.0 x 10-28) in pure water? 1.0 x 10-7 M 1 x 10-14 M 1.0 x 10-28 M 1.0 x 10-56 M
- A first-stage recovery of magnesium from seawater is precipitationof Mg1OH22 with CaO:Mg2+(aq) + CaO(s) + H2O(l)---->Mg(OH)2(s) + Ca2+(aq) What mass of CaO, in grams, is needed to precipitate 1000lb of Mg(OH)2?b) A carbonate of metal X has the formular X,CO3. The carbonate reacts with hydrochloric acid according to the following equation: X,CO3 + 2HC! → 0.25g of X,CO3 was found to neutralize exactly 23.6cm³ of hydrochloric acid of concentration 0.15moldm? ( RAM for C=12;0=16) i) Calculate the number of moles of hydrochloric acid 2XCl + CO2 +H,0 ii) Calculate the number of moles of X,CO3 iii) Calculate the relative molecular mass of X,CO3 iv) Calculate the relative atomic mass of X and hence deduce its identity c) Propanoic acid is a weak acid with an acid dissociation constant of 1.22x 10°moldm i) Write an equation for the ionization of propanoic acid -3 ii) Calculate the pKa for propanoic acid Lo iii) Sodium propanoate is made by the titration using 0.1M sodium hydroxide with propanoic acid A: Write an equation for the reaction B: Name a suitable indicator for this titration iv) A mixture of sodium propanoate and propanoic acid acts as a buffer solution. What is a buffer solution?Given the Ksp for Ag2CrO4 is equal to 1.20 x 10-12, calculate the percent error in your experimentally determined value for average Ksp (this will be an extremely large percentage – think about why).