moles Fe(II) = 0.050 L x 0.0550 M=0.00275
From equation we can see, 4 moles Fe =1 Mole 02, so
moles O2 = 0.0021/4 =0.0006875
now convert moles of O2 to grams:
mass O2 = 0.0006875 mol x 32 g/mol=0.022 g
Fe(lI) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution,...
Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II) to insoluble Fe(III): 4Fe(OH)+ (aq) + 4OH- (aq) + O2 (g) + 2H2O (l) -----> 4Fe(OH)3 (s) How many grams of O2 are consumed to precipitate all of the iron in 60.0 mL of 0.0450 M Fe(II)? ____g
Feedback See Periodic Table Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(ll) to insoluble Fe(III): 4Fe(OH(aq) +40H (aq) +0,(8) + 2H,00) — 4Fe(OH), ) How many grams of O2 are consumed to precipitate all of the iron in 60.0 mL of 0.0850 MFeClu? 32 1st attempt
See Periodic Table SeeH Fe(ll) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fein to insoluble Fe(lll): 4Fe(OH)*(aq) + 4OH(aq) +0,(8) +2H,0(1) 4Fe(OH),() How many grams of O, are consumed to precipitate all of the iron in 60.0 ml of 0.0850 Mrel)?
3rd attempt See Periodic Table See Hint Fe(I) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(I) to insoluble Fe(II): 4Fe (OH) (aq)40H (aq) +0,(g) +2H,0(1) » 4Fe (OH)2(s) How many grams of O2 are consumed to precipitate all of the iron in 55.0 mL of 0.0950 MFe(II)? 2nd attempt <13/27 4 VIEW SOLUTION 18 OF 27 QUESTIONS COMPLETED SUBMIT ANSWER
Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag+(aq)+Cl−(aq)→AgCl(s) Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl must be added to 25.0 mL of 0.149 M AgNO3 solution to completely precipitate the silver?
NONTON Aluminum ions may be precipitated from aqueous solution by the addition of hydroxide ion, forming Al(OH)3. A large excess of hydroxide ion must not be added, however, because the precipitate of Al(OH)3 will redissolve as a soluble compound containing aluminum ions, and hydroxide ions begin to form. How many grams of solid NaOH should be added to 10.0 mL of 0.131 M AICI: to just precipitate all the aluminum?
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...