An insecticide is known to contain C, H, and Cl. Reactions were carried out on a 1.000g sample of the compound that converted all of its chlorine to chloride ion dissolved in water. The aqueous solution was subsequently treated with an excess of AgNo3 solution and the AgCl precipitated was collected and weighed. Its mass was 2.022g of AgCl.
What is the equation of the rxn?
How many moles of Cl (Cl-) were in the AgCl sample?
A soluble iodide was dissolved in water. Then an excess of AgNO3 was added to completely precipitate out all of the iodide ion as AgI. 1.545g of soluble iodide yielded 2.185g of AgI
What is the equation of the rxn?
How many mol of I (I-) are in the original soluble iodide sample?
2007-10-22 01:36:20 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
AgCl has a molar mass of 35.5+107.9 =143.4g
this correspond to 2.022/143.4 =0.0141M =14.1mM This is the nimber of moles of AgCl and of Cl ions
equations of reaction AgNO3 +Cl---> AgCl+No3-
Iodide mass 126.9 So 1.545/1276.9 =0.0122mole=12.2mM
AgNO3+I- --->AgI +NO3-
2007-10-22 01:57:57 · answer #1 · answered by maussy 7 · 0⤊ 0⤋