Calculate Volume of Ferric Chloride 1.058g/cc, 34.0g

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Homework Help Overview

The problem involves calculating the volume of a ferric chloride solution given its density and mass percentage. The density is specified as 1.058 g/cc, and the solution is 7.00 percent by mass ferric chloride. The goal is to determine the volume needed to provide 34.0 g of ferric chloride.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are discussing the meaning of the mass percentage and how it relates to the total mass of the solution. There are questions about the initial steps to take in solving the problem, including whether to multiply the mass of ferric chloride by the mass percentage and how to apply the density formula.

Discussion Status

The discussion is ongoing, with participants exploring the implications of the mass percentage and how it affects the calculation of the solution's volume. Some have provided insights into the relationship between the mass of ferric chloride and the mass of the solution, but there is no explicit consensus on the next steps.

Contextual Notes

Participants are clarifying the relationship between the mass of ferric chloride and the total mass of the solution, as well as the components of the solution itself. There is an emphasis on understanding the mass percentage in the context of the problem.

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Homework Statement



The density of a solution of ferric chloride is 1.058g/cc, and it is 7.00 percent by mass. What volume of the soltion (in mL) do you need to supply 34.0g of ferric chloride?

Homework Equations



D=m/v

The Attempt at a Solution



Not sure where to begin. I don't understand the statement, " and it is 7 percent by mass". Does this mean i ned to multiply 34*0.07? then just calculate the volume by rearranging the density formula?
 
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It means that 100 g of the solution contains 7 g of ferric chloride.
 
Where do I even begin on this question?
 
You know the absolute mass of ferric chloride you need to supply.

You know the mass percentage of it in the solution => you know the mass of the solution containing the required amount of ferric chloride.

Can you see what happens next?
 
muultiply mass by mass percentage?
 
You do understand that the solution is partly water and partly ferric chloride, right?

If, as voko pointed out, 100 gm of the solution contains 7 gm of ferric chloride, how many grams of solution contain 34 grams of ferric chloride?
 

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