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A method to measure Ca is to precipitate the calcium as a salt and weight the...
You are using gravimetric analysis to determine the concentration of calcium (Ca2+) in tap water. The...
You are using gravimetric analysis to determine the concentration of calcium (Ca2+) in tap water. The calcium is precipitated as calcium oxalate monohydrate upon addition of ammonium oxalate to the tap water according to the following reaction: Ca +2 (aq) + C2O4 -2 (aq) → CaC2O4 ∙H_2 O (s) Ksp = 1.3 x 10 -8 The protocol calls for addition of 25 mL of 1.0 M ammonium oxalate to 25 mL sample. In order to ascertain the accuracy of your...
Calcium fluoride, CaF2, is an insoluble salt (Ksp = 1.46 x 10-10) that can be formed...
Calcium fluoride, CaF2, is an insoluble salt (Ksp = 1.46 x 10-10) that can be formed by precipitation by mixing solutions of calcium nitrate and sodium fluoride. Suppose 200.0 mL of a 0.600 M Ca(NO3)2(aq) solution are mixed with 400.0 mL of a 0.0600 M NaF(aq) solution. Will a precipitate form? How much calcium fluoride could form?
A solution contains .04 M Ca+, .04 M Zn2+, and .04 M Ni2+ ions. A) If...
A solution contains .04 M Ca+, .04 M Zn2+, and .04 M Ni2+ ions. A) If you separate them using (NH4)2C2O2, which ion will precipitate first as an oxalate? Consider Ksp Values for CaC2O4, ZnC2O4, and NiC2O4. CaC2O4 Ksp = 1.3 x 10^-9 ZnC2O4 Ksp = 1.5 x 10^-9 NiC2O4 Ksp = 4.0 x 10^-10 B) Calculate the concentration of the oxalate ion when the first cation (Ca2+, Zn2+, or Ni2+ begins to precipitate. C) Explain why ZnC2O4 and NiC2O4...
7. Will calcium fluoride (Ksp 5.3 x 10") precipitate when 200 mL of a 4.50 x...
7. Will calcium fluoride (Ksp 5.3 x 10") precipitate when 200 mL of a 4.50 x 10' M solution of Ca(NO,), is added to a 0.170 L solution of 2.5 x 10 M solution of KF? Ca(NO), + 2KF → 2KNO, + CaF2
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium...
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium iodate: Volume (or mass) of saturated calcium iodate solution titrated: 25 °C 10 ml (or g) Dat Trial 1 Trial 2 Trial 3 Volume of Na S o titrant Final buret reading Initial buret reading ml mL mL mL Net volume of Na So 26.621 mL 30.019 mL Calculated concentration of 10 Standardized 0.05 M sodium thiosulfate (Na,8,0,) solution (10,51(E) - TIL 10 mols.0.2...
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium...
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium iodate: Volume (or mass) of saturated calcium iodate solution titrated: 25 °C 10 ml (or g) Dat Trial 1 Trial 2 Trial 3 Volume of Na S o titrant Final buret reading Initial buret reading ml mL mL mL Net volume of Na So 26.621 mL 30.019 mL Calculated concentration of 10 Standardized 0.05 M sodium thiosulfate (Na,8,0,) solution (10,51(E) - TIL 10 mols.0.2...
A saturated solution of calcium iodate contains 2.37 g/L of Ca(IO3)2. (a) What is the solubility...
A saturated solution of calcium iodate contains 2.37 g/L of Ca(IO3)2. (a) What is the solubility of calcium iodate in mol/L? (b) What are the concentrations of Ca2+ and IO3 – ion, respectively, in the saturated solution? (c) Calculate the Ksp value for Ca(IO3)2. Part b ) Silver ion, Ag+ , readily forms complex ion, Ag(S2O3)2 3– , with thiosulfate, S2O3 2– , according to the following equation: Ag+ (aq) + 2S2O3 2– (aq) ⇌ Ag(S2O3)2 3– (aq); Kf =...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the following reaction as a function of the concentrations of the products: Ca(103) (s) Ca²+ (aq) + 210,- (aq) 2. Ca(IO3)2 will ionize in water to produce 10, ions. The 10, ions will react with KI. Write the reaction for this reaction. 3. We will be using starch as an indicator. Why? 4. In this experiment, we will first produce Izby mixing calcium iodate with...
i need help with part c) please. please show me your work 3:51 PM Tue Oct...
i
need help with part c) please. please show me your work
3:51 PM Tue Oct 29 chem 315 Insert Draw View Home -- Insert Space A Text Mode Lasso Select Pg 1 of 6 Chemistry 315 Unit 2B1 4. A 25.00 mL solution containing 0/03110 M Na2C2O4 was titrated with 0.02570 M Ca(NO3)2 to precipitate calcium oxalate: Ca2+ + C2042 → CaC204 (s). Find pCa2+ at the following volumes of Ca(NO3)2. Ksp for CaC2O4 = 1.3 x 10- a)...
For the insoluble salt cadmium (II) iodate, the solubility product, Ksp, is 2.3 x 10-8. a)...
For the insoluble salt cadmium (II) iodate, the solubility product, Ksp, is 2.3 x 10-8. a) Write the solubility product expression for cadmium (II) iodate. b) Determine the molar solubility (M) of cadmium (II) iodate in pure water. c) Calculate the solubility (M) of cadmium (II) iodate in a solution of 0.20 M Cd(NO3)2. Comment on whether the solubility has increased or decreased from part (b). d) Predict whether the solubility of cadmium (II) iodate will increase or decrease if...
7. Will calcium fluoride (Ksp 5.3 x 10") precipitate when 200 mL of a 4.50 x 10' M solution of Ca(NO,), is added to a 0.170 L solution of 2.5 x 10 M solution of KF? Ca(NO), + 2KF → 2KNO, + CaF2
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium iodate: Volume (or mass) of saturated calcium iodate solution titrated: 25 °C 10 ml (or g) Dat Trial 1 Trial 2 Trial 3 Volume of Na S o titrant Final buret reading Initial buret reading ml mL mL mL Net volume of Na So 26.621 mL 30.019 mL Calculated concentration of 10 Standardized 0.05 M sodium thiosulfate (Na,8,0,) solution (10,51(E) - TIL 10 mols.0.2...
1. The Molar Solubility of Ca(10), in Pure Water Temperature of the saturated solution of calcium iodate: Volume (or mass) of saturated calcium iodate solution titrated: 25 °C 10 ml (or g) Dat Trial 1 Trial 2 Trial 3 Volume of Na S o titrant Final buret reading Initial buret reading ml mL mL mL Net volume of Na So 26.621 mL 30.019 mL Calculated concentration of 10 Standardized 0.05 M sodium thiosulfate (Na,8,0,) solution (10,51(E) - TIL 10 mols.0.2...
Pre-Lab for Determination of Solubility Product Constant 1. Write the solubility product constant (Ksp) for the following reaction as a function of the concentrations of the products: Ca(103) (s) Ca²+ (aq) + 210,- (aq) 2. Ca(IO3)2 will ionize in water to produce 10, ions. The 10, ions will react with KI. Write the reaction for this reaction. 3. We will be using starch as an indicator. Why? 4. In this experiment, we will first produce Izby mixing calcium iodate with...
i
need help with part c) please. please show me your work
3:51 PM Tue Oct 29 chem 315 Insert Draw View Home -- Insert Space A Text Mode Lasso Select Pg 1 of 6 Chemistry 315 Unit 2B1 4. A 25.00 mL solution containing 0/03110 M Na2C2O4 was titrated with 0.02570 M Ca(NO3)2 to precipitate calcium oxalate: Ca2+ + C2042 → CaC204 (s). Find pCa2+ at the following volumes of Ca(NO3)2. Ksp for CaC2O4 = 1.3 x 10- a)...
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