Recent content by HisashiH

a 3.026 g portion of Copper(II) salt was dissolved in a 250ml volumetric flask a 50ml aliquot was analyzed by adding 1gram of KI and titrating the liberated iodine with 23.33ml of 0.04668 M Na2S203 find the weight percent of Cu in the salt, should starch indicator be added to this titration at...

a 3.026 g portion of Copper(II) salt was dissolved in a 250ml volumetric flask a 50ml aliquot was analyzed by adding 1gram of KI and titrating the liberated iodine with 23.33ml of 0.04668 M Na2S203 find the weight percent of Cu in the salt

how do i solve these equations.. 1. A Cyanide Solution with a 12.73 ml was treated with 25.00 ml of Ni^2+ solution containing (excess Ni^2+) to convert cyanide into tetracyanonickelate (II) 4CN + Ni2+ ----> Ni(CN)4 the excess Ni2+ was then titrated with 10.15 ml of 0.01307 M EDTA Ni2+ + EDTA...

how do i solve these equations.. 1. A Cyanide Solution with a 12.73 ml was treated with 25.00 ml of Ni^2+ solution containing (excess Ni^2+) to convert cyanide into tetracyanonickelate (II) 4CN + Ni2+ ----> Ni(CN)4 the excess Ni2+ was then titrated with 10.15 ml of 0.01307 M EDTA Ni2+ + EDTA...

again sorry i need help to solve this problem.. thanks a lot a 0.4793g sample of primary standard grade Na2CO3 was treated with 40ml of dilute perchloric acid. the solution was boiled to remove C02 following which the excess HClO4 was back titrated with 8.70ml of dilute NaOH. in a separate...

again sorry i need help to solve this problem.. thanks a lot a 0.4793g sample of primary standard grade Na2CO3 was treated with 40ml of dilute perchloric acid. the solution was boiled to remove C02 following which the excess HClO4 was back titrated with 8.70ml of dilute NaOH. in a separate...

i need help solving these problems.. these are the only ones that get in my way for an exam 1. a 0.6334g sample of primary standard grade HgO (m.m. 216.59) was dissolved in 100ml of 0.5M KI solution. the Liberated OH needed 35.60 ml of HNO3 to reach end point. calculate the molarity of HNO3...