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Posted by on Wednesday, May 7, 2008 at 9:01pm.

a 36.o% Aqueous solution of sucrose has a density of 1.16g/mL.What mass of sucrose is in 500mL of this solution?

  • chemistry - , Wednesday, May 7, 2008 at 9:08pm

    mass = density x volume
    1 L of the solution has a mass of
    1000 mL x 1.16 g/mL = 1160 grams.
    How much of that is sucrose. 36%, therefore,
    1160 x 0.36 = grams sucrose in 1,000 mL.
    So how much is in 500 mL

  • chemistry - , Wednesday, May 7, 2008 at 10:44pm

    so how do you do this one..i get it a little bit

  • chemistry - , Wednesday, May 7, 2008 at 11:34pm

    If I told you that we had 418 apples in a barrel (must be a big barrel), then how much would there be in 1/2 a barrel?
    If there are 418 (you need to multiply to find how many grams are there) in 1000 mL, how many grams would there be in 500 mL?

  • chemistry - , Wednesday, May 7, 2008 at 11:37pm

    so i times them??

  • chemistry - , Thursday, May 8, 2008 at 12:01am

    You have 417.6 grams of sucrose in 1000 mL. How much do you have in 500 mL (half the 1000)? Did you times them to find the number of apples in half a barrel?

  • chemistry - , Thursday, May 8, 2008 at 12:06am

    well if you times them its 500000..

  • chemistry - , Thursday, May 8, 2008 at 12:20am

    I have 417.6 grams in 1000 mL. I will have EXACTLY half that amount in 500 mL (which is just 1/2 of the 1000). So 417.6 g x (1/2) = ?? grams sucrose OR
    417.6 g/2 = ?? grams sucrose. .

  • chemistry - , Thursday, May 8, 2008 at 12:22am

    which is 208.8

  • chemistry - , Thursday, May 8, 2008 at 12:29am

    right.

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