precipitation related questions

• 1precipitation

Hello,Please provide step by step solution for the ff:Will Co(OH)2 precipitate from solution if the pH of a .0200 M solution of Co(NO3)2 is adjusted to 8.5? Ksp=1.6x10^-15Thanks.

• 2Precipitation

Iron (III) ions, calcium ions, and lead (II) ions are all in asolution. You want to separate the ions so that you have each onein solid form without the other ions.Solutions ofNa2CO3, NaBr, NaCl, NaOH, and NaI areavailable. What precipitates should you form and in what order?

• 3Precipitation

A 75.0mL. sample of 1.48*10-2 MNa2S04 (aq) is added to 75.0mL. of1.22*10-2 M Ca(NO3)2 (aq). What percentageofCa2+ remains unprecipitated?

• 4Precipitation

1. You mix 25.0 mL of 0.234 M FeCl2 with 42.5 mL of0.453 M NaOHa. What mass of the resulting precipitate will form from thisreaction mixture?b. What is the molar concentration of the excess reastantremaining in solution after precipitation?

• 5precipitation

identify how precitipation reactions can be used in the water treatment and purification processes to help maintain a safe municipal water supply.

• 6precipitation

calculate the concentration of ammonia NH3, necessary to initiatethe precipitation of Zn(OH)2 from 3.2x10^-3 M ZnSO4

• 7precipitation

Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.a)3.5*10^-2 M Ba(NO3)2 ; NaFb)8.0*10^-2 M CaI2 ; K2SO4c)1.5*10^-3 M AgNO3 ; RbCl

In qualitative analysis, Ag+,Hg22+, and Pb2+ are separated fromother cations by addition ofHCl. Calculate the concentrationof Cl- required to just begin precipitation of (a)AgCl (b) Hg2Cl2, and (c)PbCl2in a solution having a metal ion concentrationsof0.030 M. What fraction of Pb2+ remainsin solution when the Ag+ just begins toprecipitate?

• 9Completeness of Precipitation

A 75.0 sampleof1.50×10−2 is added to 75.0 of 1.28×10−2 .What percentage of the remains unprecipitated?Express youranswer using two significant figures.

• 10Precipitation reaction

What is the volume of 1.222M sodium hydroxide required to react witha. 32.5ml of .569M sulfurous acid? one mole of sulfurous acid reacts with 2 moles of hydroxide ionb. 5.00 g oxalic acid (H2C2O4) One mole of oxalic acid reacts with two moles of hydroxide ion

• 11Precipitation Calculation

Part AIf 500.0 of 0.10 is mixed with500.0 of 0.10 , what mass ofcalcium sulfatewill precipitate? for is .Express your answer numerically ingrams.

• 12Fractional Precipitation

What is a suitable pH for the separation by precipitation of Fe(OH)3 from a solution that is initially 0.010 M in both Fe+3 and Zn+2 ?