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if you are using 5.25% (mass/mass) bleach solution and you determine that the density of the bleach solution is 1.08 g/ml, how many moles of sodium hypochlorite are present in a 4.00 ml sample? group of answer choices 0.00305 moles 0.00441 moles 0.00282 moles 0.00261 moles

Sagot :

0.00305 moles is the answer.

moles of NaClO = mass of sample * density of bleach solution * mass of                bleach solution * 1 mol/ mass of NaClO

                           = 4.00 * 1.08 * 0.0525/74.4 g of NaClO

                           = 0.00305.

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