Chemical Forums

Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: babychico on November 20, 2019, 10:59:37 AM

Title: please help
Post by: babychico on November 20, 2019, 10:59:37 AM

I have been trying to do this calculation for a week.. I am desperate, please if you pass by help...

3.5 g of zinc metal was dissolved in dilute sulphuric acid and then made up to 509 cm3 with water. What is the percentage mass in volume composition in terms of zinc sulphate ( ZnSO4.7H2O)

Title: Re: please help
Post by: billnotgatez on November 20, 2019, 11:11:34 AM

You have to show your attempts or thoughts at solving the question to receive help.
This is a forum policy.
Click on the link near the top center of the forum page.
Forum Rules: Read This Before Posting.
http://www.chemicalforums.com/index.php?topic=65859.0 (http://www.chemicalforums.com/index.php?topic=65859.0)

Title: Re: please help
Post by: AWK on November 20, 2019, 11:49:43 AM

The density of the solution is needed to calculate this task. You can assume that this is the density of water. Then the calculation error will be around 2%.