ZuoTi.Pro
Question

(2) A 3.8g metal made from a gun residue containing iron is dissolved in 100cm acid solution. The solution formed contains (F can you please explain why you do esch step too.
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

The moles of MnO4- used, which are the same as Fe + 3, are calculated:

n MnO4- = M * V = 0.02 M * 0.0113 L = 0.000226 mol

The mass of Fe in 15 cm3 is calculated:

m Fe = n * MM = 0.000226 * 55.8 = 0.013 g

The mass in the total diluted volume is calculated:

m1 = 0.013 * 100/15 = 0.087 g

The percentage is calculated:

% Fe = 0.087 * 100 / 3.8 = 2.29%

If you liked the answer, please rate it in a positive way, you would help me a lot, thank you.

0 0
Add a comment
Know the answer?
Add Answer to:
can you please explain why you do esch step too. (2) A 3.8g metal made from...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN...

    4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....

  • Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...

    Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for the empty spaces and question marks EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...

  • Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...

    Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT