Sunday
October 26, 2014

Homework Help: Chemistry

Posted by Ken on Wednesday, December 7, 2011 at 2:45am.

You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that compound. The salt is quantitatively transferred into a 250mL volumetric flask and 8mL of 3M H2SO4 is added and then diluted to the mark (call this stock Fe solution). 10mL of the stock solution is pipeted into a 100mL volumetric flask, adding 4mL of 3M H2SO4 and diluted to the mark (call this original Fe solution).

10mL of the original fe solution is pipeted into a 50mL volumetric flask (call this standard Fe solution). What is the concentration of the standard Fe solution (mg/L)?

It should be somewhere around 2, but I can't seem to calculate it correctly.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Can someone please check my work? Calculate the mass of (NH4)2S2O8 ...
Chemistry - which of thh following reactants would you add to an aqueous ...
chemistry - calculate number of grams of iron in one mole of ferrous ammonium ...
Chemistry - Calculate the solid needed to make a 250ml solution that is 0.34M in...
Chemistry - you add excess sodium sulfate to a solution of a soluble barium ...
Chemistry - you add excess sodium sulfate to a solution of a soluble barium ...
chemistry - how many milliliters of 5M NaCl are required to prepare 1500 ml of ....
chemistry - 1) To prepare a 200 mL of aqueous stock solution X, you transferred ...
chemistry - You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is ...
chemistry - need help with these problems: The concentration of glucose in blood...

Search
Members