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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: depressedchild on February 23, 2012, 11:42:36 pm

Title: depressedchild's chem questions
Post by: depressedchild on February 23, 2012, 11:42:36 pm: a student dissolved x g of fes04.7h20 in 50.00ml of acid then titrated it with 0.1022 M Kmn04. A titre of 22.74 ml was required. Find the value of X.
Title: Re: depressedchild's chem questions
Post by: #1procrastinator on February 24, 2012, 03:10:37 pm: find the mol of potassium permanganate (i think that's what it's called) and using the equation (1:1?), find the mol of the hydrated iron sulfate and find the mass from there
Title: Re: depressedchild's chem questions
Post by: Phy124 on February 24, 2012, 06:14:12 pm: Quote from: depressedchild on February 23, 2012, 11:42:36 pm
a student dissolved x g of fes04.7h20 in 50.00ml of acid then titrated it with 0.1022 M Kmn04. A titre of 22.74 ml was required. Find the value of X.
Sorry, a bit confused with the way you've typed this up. Are the bolded chemicals $FeSO_{4}\cdot 7H_{2}O$ and $KMnO_{4}$ respectively?
Title: Re: depressedchild's chem questions
Post by: depressedchild on February 26, 2012, 06:13:08 pm: yep, those are the correct chemicals :D