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Nov 28

3) Determine [Ba 2+] and [PO 4 3 ¯]: even though it is immportant ffor calculating Ka and Kb. calculate the molar solubility of Ag2CrO4 AT 25 C in: a- pure water b- 0.200M AgNO3 C- 0.200M Na2CrO4 for Ag2CrO4 AT 25C, Ksp=1.2x10^(-12) Calculate the molar solubility of Fe(OH)2 when buffered at pH = 10.1. Calculate the molar solubility of Fe(OH)2 when buffered at pH = 11.9. Still have questions? Molar mass is the mass of 1 mole of the solute. Can someone please help with these questions? I am going to assume that you are given the solubility of an ionic compound in mol dm-3. Calculate … The formula for K sp is: K sp = [Ag + ] [I –] K sp = s 2 = 8.5 x 10 -17. where s is the concentration of each ion at equilibrium. Draw structures of OF2, BrF3, SCl2, XeF4, PF3 in a way that indicates their molecular shape? [OH-]. Calculate the molar solubility of Fe(OH)2 when buffered at pH = 10.1. P.S. K sp (MgF 2) = 8.0 x 10-8.. This will tell you how much Fe(OH)2 has dissolved. From pH the H+ ions = a million.2x10^3 = C6HJ5COO- ions Ksp =, (a million.2x10^-3)^2 = a million.44x10^-6 Moles consistent with Litre. Can someone please help with these questions? Which of the following compounds is most soluble in water? Example 1. Given the K sp, calculate the molar solubility (in mol/L) of a saturated solution of the substance. Solution: 1) Write the chemical equation for the dissolving of barium phosphate in water: Ba 3 (PO 4) 2 (s) ⇌ 3Ba 2+ (aq) + 2PO 4 3 ¯(aq) 2) Write the K sp expression for barium phosphate: K sp = [Ba 2+] 3 [PO 4 3 ¯] 2. I thought I knew how to work them but keep coming up with the wrong answer for both. a.) moles of solute in 100 mL; S = 0.0016 g / 78.1 g/mol = \(2.05 \times 10^{-5}\) mol \[S = \dfrac{2.05 \times 10^{ –5} mol}{0.100\; L} = 2.05 \times 10^{-4} M\] Use the ksp value and [OH-] above to find [Fe+2]. If it was in g dm-3, or any other concentration units, you would first have to convert it into mol dm-3. Taking the square root of both sides allows you to solve for the molar solubility: Thus, the molar solubility of both Ag + and Cl - is thus 1.3 x 10 -5 M. Finding Ksp From Molar Solubility The solubility of CaF 2 (molar mass 78.1) at 18°C is reported to be 1.6 mg per 100 mL of water. Calculating solubility products from solubilities. Which of the following is not a geometric (cis-trans) isomer. Can someone explain what to do after this to get the answer? What is the molar solubility of MgF 2 in a 0.20 M solution of NaF? President Trump lashes out at 'lightweight' reporter, Seymour, 69, clarifies remark on being able to play 25, People can’t believe Trump’s tiny desk isn’t a joke, NFL player's neck injury may end his career, Aniston introduces 'newest member of our family', The 20 jobs most at risk because of the pandemic, Sleuths find Utah monolith, but mystery remains, Here are Amazon's best Black Friday deals, Matthew Perry engaged to 'the greatest woman', Tired of mockery, Austrian village changes name, Donor sues over failure to expose election fraud. Calculate the molar solubility of Fe(OH)2 when buffered at pH = 11.9. ? a.) a.) Calculate the value of K s under these conditions. Now, solve for s: s 2 = 8.5 x 10 -17. s = [latex]\sqrt {8.5 \times 10^ {-17} } [/latex] s = 9.0 x 10 -9 mol/L. Calculate its solubility in moles per liter. Example #10: The molar solubility of Ba 3 (PO 4) 2 is 8.89 x 10¯ 9 M in pure water. I thought I knew how to work them but keep coming up with the wrong answer for both. An example of a soluble substance is NaNO 3 (sodium nitrate), which has a high molar solubility with 10.0+ moles per liter of solution most of the time. Soilids have not got a concentration, so we are able to forget approximately approximately it here. Calculate the molar solubility of Fe(OH)2 when buffered at pH = 10.1. Get your answers by asking now. Join Yahoo Answers and get 100 points today. The chief was seen coughing and not wearing a mask. b.) Molar solubility (M) is a measure of the ability of a compound, called a solute, to dissolve in a specific substance, called a solvent.Specifically, it is the maximum number of moles of a solute that are able to dissolve in one liter of solvent, so molar solubility is measures as moles/L. Should I call the police on then? An example of an insoluble substance, AgBr (silver bromide), has a minuscule molar solubility with the value being close to 5.71 x 10 to the … molar solubility of gas at 101.3 kPa = c(gas) = P × 1/K = 101.3 × 1/k The graph below shows how the solubility of a gas increases as its partial pressure increases according to Henry's Law: concentration / mol L-1: Molar Solubility of gases in water at 25°C.

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