Ask Experts Questions for FREE Help !
Ask
    hayzemay's Avatar
    hayzemay Posts: 7, Reputation: 1
    New Member
     
    #1

    Oct 17, 2007, 04:20 AM
    Mass percentage
    Vinegar (0.9862 g) was titrated withj 0.120 M NaOH. 26.28 cm3 were required. What is the (mass) % CH3COOH in the vinegar?

    I got an answer of 19.2% but I'm not sure can anyone help
    templelane's Avatar
    templelane Posts: 1,177, Reputation: 227
    Ultra Member
     
    #2

    Oct 17, 2007, 04:51 AM
    Here's my working so you know I'm not just randomly agreeing with you. I haven't explained every step this time because if your right you must know what you're doing.


    0.120 x (26.28 /1000) = 0.003M

    MW of CH3COOH = 60.05

    mass (g) = amount (moles) x molecular weight (g/mole)


    g of CH3COOH = 0.189

    (0.189 g of acetic acid/0.9862g of vinegar)/100= 19.2%

    = YOUR RIGHT YAY!!

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

Percentage formula [ 2 Answers ]

I'm trying to find out what number is 39,200, 2 percent of Is there a formula

Percentage Problems [ 4 Answers ]

Its been along time since Ive had to do a percentage word problem. :mad: the question is... What percent of Samantha's earnings is withheld for taxes? (She receives a check for $75 after working 15 hours at $6.00 oer hour.) I don't need an answer I just need to know how to set it up.....

Percentage of a number [ 2 Answers ]

I need a formula for this, if a product is on sale for 3600 dollars and the regular price is 4000 dollars. What formula do I use to get the percentage of what was taken off. Thanks

Finding Percentage [ 3 Answers ]

I am selling a product for $ 3.38 , which cost me $ 3.12. What formula will tell me at what percentage I am selling this for.

Percentage of group [ 3 Answers ]

if 10% of a group of people (number of people don't matter) has 1 thing in common and 11% of the same group of people has a different thing in common - what percent of the group has both things in common to sum it up - 10% has 1 thing in common 11% has 1 thing in common ...


View more questions Search