Ask Experts Questions for FREE Help !
Ask
    ankara55t's Avatar
    ankara55t Posts: 53, Reputation: 2
    Junior Member
    		  
    #1

    Jul 15, 2009, 01:50 PM
    preparing a solution
    A chemist wants to prepare 200mL of a saturated solution of BaF2, the ocncentration of which is 6.3 X 10-3mol/L. what mass of BaF2 will be needed to make up the 200mL. Of the solution.

    I said .2L X 6.3 X 10-3 ml./L = 1.26 X 10-3mol



    Using the molar mass of BaF2 = 175g/mol,

    175 g/mol X 1.26 X 10-3 mol

    = .220g

    Is this right?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
    		  
    #2

    Jul 15, 2009, 05:19 PM
    A chemist wants to prepare 200mL of a saturated solution of BaF2, the concentration of which is 6.3 X 10-3mol/L. what mass of BaF2 will be needed to make up the 200mL. Of the solution.

    I said .2L X 6.3 X 10-3 ml./L = 1.26 X 10-3mol

    Using the molar mass of BaF2 = 175g/mol,

    175 g/mol X 1.26 X 10-3 mol

    = .220g
    Yes, you are correct. Your logic is flawless. Congratulations!
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

Preparing T- Accounts [ 1 Answers ]

Use the information in Exercise 2-4 to prepare an August 31 trial balance for Pose-for-Pics. Open These T-accounts: Cash; Office Supplies; Prepaid Insurance; Photography Equipment; H. Paris, Capital; Photography Fees Earned; and Utilities Expense. Post the general journal entries to these...

Preparing of accounts. [ 2 Answers ]

2002 Aug 1 Commenced operations by contributing the following assets and liabilities: Cash at bank $4000; Stock $2800; Motor vehicle $8900; Loan from Pacific Bank $5000. 3 Purchased goods on credit from Wencong $7500. 7 Cash Sales paid directly into bank...

Preparing a Motion [ 2 Answers ]

How do I prepare a motion to change custody, I know someone who is going through a contested divorce, but the custody was determined by the court in favor of the other party. They have not made proper visitation as agreed by court. Therefore I want to prepare a motion asking court to modify the...

Preparing a worksheet [ 3 Answers ]

I have to create a worksheet using the following information: 1. Prepare a 10 column work sheet for fiscal year 2008, starting with the unadjusted trial balance and inluding adjustments based on these additional facts. (columns include in this order: unadjusted trial balance, adjustments, adjusted...

View more questions Search