write the ionic formula of a substance that Forms a precipitate with CRO-24d and also with Cl Form a precipitate with HCL solution and also with HNO3 solution Dissolve AgCl but not Hg2Cl2.
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write the ionic formula of a substance that
- Forms a precipitate with CRO-24d and also with Cl
- Form a precipitate with HCL solution and also with HNO3 solution
- Dissolve AgCl but not Hg2Cl2.
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- Why homogenously formed precipitates are better suited for analysis than a precipitate formed by direct addition of a precipitating agent?The Ksp for BaCrO4 is 1.2×10−10.1.2×10−10. Will BaCrO4 precipitate upon mixing 10 mL of 1×10−41×10−4 M Ba(NO3)2 with 10 mL of 1×10−41×10−4 M K2CrO4?xpress numerical result with an accuracy of: Х,Х 1. The substance to be analyzed – is deep-pink colored, highly soluble in water salt. Reaction with NH3 gives blue-colored precipitate, which can be dissolved in NH3 surplus accompanied by dirty-yellow colored solution formation. After precipitation of cation by “sodium carbonate drawing out” method, supernatant was independently treated by silver nitrate solution and barium chloride solution (in acid medium in both cases) – any precipitation hasn`t been observed. Addition of antipyrin in acid medium changes color to red. What kind of substance is this? Explain you answer, provide chemical equations
- An unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an effervescence and gives a precipitate with K2S solution. Which compound is it? a. NiCO3 b. K3PO4 c. Zn3 (PO4) 2 d. MgCO3How would you use an experimentally determined Ksp value to calculate that Ag2CrO4 should precipitate when 5ml of 0.0040 M AgNO3 are added to 5ml of 0.0024 M K2CrO4. You can come up with your own experimentally Ksp value. I just want to see steps in solvingIf the molar solubility of PbCrO4 at 25 oC is 5.48e-07 mol/L, what is the Ksp at this temperature?Ksp = (b) It is found that 1.08e-09 g of Fe(OH)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Fe(OH)3.Ksp = (c) The Ksp of Mg3(PO4)2 at 25 oC is 1.04e-24. What is the molar solubility of Mg3(PO4)2?solubility = mol/L
- A saturated solution of Mg(OH)2 in contact with undissolved Mg(OH)2(s) is prepared at 25 °C. The pH of the solutionis found to be 10.17. Assuming that there are no othersimultaneous equilibria involving the Mg2 + or OH- ions,calculate Ksp for this compound.10mL of a 10% by weight MgCl2 solution (density = 1.1 g / mL) is precipitated as magnesium ammonium phosphate after necessary processes, filtered and washed. The precipitate is dissolved in 50mL 1M HCl and excess acid is titrated with 2.0M NaOH solution in the presence of methyl orange. Find the NaOH consumption (Mg = 24,3g / mol, Cl = 35,5g / mol)Write all the reactions involved in the Mohr's method, if an unknown solution containing chloride ions is titrated against silver nitrate solution. Suggest an indicator and what is its colourin the unknown chloride solution ? and Why is KSCN solution used as burette solution and not in conical flask in Volhard's method?
- Which would precipitate first upon addition of the sodium salts of the following anions to solutions 0.10 M in Pb(NO3)2?ion Ksp of lead saltA. IO3- 3.2 x 10-13B. Cl- 1.6 x 10-5C. Br- 4.0 x 10-5D. C2H3O2- 1.8 x 10-3E. OH- 1.2 x 10-15 The answer is EA solution contains 1.5 x 10-2 moldm-3 I- and 8.0 x 10-3 moldm-3 C2O42-. If aqueous Pb(NO3)2 is added, predict which of the following solid, PbI2 or PbC2O4 will be precipitated out first. Given Ksp of PbI2 = 9.8 x 10-9 mol3dm-9 and Ksp of PbC2O4 = 8.5 x 10-9 mol2dm-6In the determination of chloride by the Mob method, what will be the equiliblium concentration of silver ions in mgil, on the basis of the solubility product principle, when the chloride concentation has been reduced to 0.2 ma? (b) If the concentration of chromate indicator used is 5X M, how much excess silver ion in mgil must be present before the formation of a red precipitate will begi(a) In the defermination of chloride by the Mohr method, what will be the equilibrium concentration of silver ions in meL., an the basis of the solubility. pcoduct principle, when the chloride concencration has beea reduced to 0.2m 1.2m? (b) If -3 the concentration of chromate indicator ased is 5 x 10M, bow much excess silver ion in mel, must be present before the formatice of a red precipitate will begin?
