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Thread: Molar Question

  1. #1 Molar Question 
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    You are asked to make a 1 Molar (1M) solution of D-Glucose (C6H12O6). What weight (in grams) of D-glucose powder would you add to 500ml of water to make this 1M solution? Show your working for this answer please.


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    Life-Size Nanoputian Flick Montana's Avatar
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    This sounds suspiciously like a homework problem.

    Your glucose is roughly 180g/mol. For 500 mL, you would want .5 mol of your solute. That suggests 90 g to me. I just did this in my head so by no means does that suggest it is right, but I'm really bored right now...


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  4. #3  
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    Try homework-r-us
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  5. #4  
    Life-Size Nanoputian Flick Montana's Avatar
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    If you want homework help, I'm always glad to offer advice, but you have to at least show that you're trying. Demonstrate your attempt to solve the problem, show the equation you are using, etc.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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  6. #5  
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    Quote Originally Posted by Glennstar View Post
    You are asked to make a 1 Molar (1M) solution of D-Glucose (C6H12O6). What weight (in grams) of D-glucose powder would you add to 500ml of water to make this 1M solution? Show your working for this answer please.
    Solution:

    d-glucose molar mass calculation: 6(12.0107)+12(1.00794)+6(15.9994) = 180.156g/mol
    Mass calculation: (180.156g/mol)(1mol/L)(0.5L) = 90.078g
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