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i read that to bleach hair we should use 3 percent hydrogen peroxide. the bottle i got is 100ml and says 6% w/v h2o2.so how much percentage of peroxide does it contain. how should i dilute it

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closed as off-topic by orthocresol, ron, Todd Minehardt, M.A.R., Jan Jul 3 '16 at 16:39

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    $\begingroup$ Welcome to Chemistry! This is a homework question. We have a policy which states that ‎you should show your thoughts and/or efforts into solving the problem. It'll make us certain that ‎we aren't doing your homework for you. Otherwise, this question may get closed.‎ Please edit in your full reasoning or thoughts on this. $\endgroup$ – M.A.R. Jul 3 '16 at 15:31
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If you mix equal masses of 6% hydrogenperoxide and water you will get 3% hydrogenperoxide.

Since the density of both liquids is rougly the same you can also mix equal volumes.

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