Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: pk333 on January 25, 2016, 01:07:50 PM
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how many mg of x to weigh out to make 10 mL of 0.25% solution. 1% w/v = 1g/100 ml. Please explain thanks I struggle with these proportion ones.
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Hello and welcome to the forums. Before we can help you you must show an attempt at the problem. It's one of the rules you can read about here (http://www.chemicalforums.com/index.php?topic=65859.0).
What sort of a problem do you think this is? What equations do you know that can relate mass, volumes, and concentrations?
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Hello and welcome to the forums. Before we can help you you must show an attempt at the problem. It's one of the rules you can read about here (http://www.chemicalforums.com/index.php?topic=65859.0).
What sort of a problem do you think this is? What equations do you know that can relate mass, volumes, and concentrations?
Is it simply 0.025 grams?
1% solution = 1g/100ml
0.25% solution = 0.25g/100ml= 0.025g/10ml
Sorry I hate these types of problems haha.
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Seems right to me.