22-03-2017
Chemistry

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what is the molarity of 15.00g of naoh in 750.0 ml of solution?

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malucia malucia

29-03-2017

from the equestion:
M=conc÷molarmass
where:conc=mass÷volume (15.00g÷(750.0mL×0.001L) ) =(0.75L)
now:15.00g÷0.75dm cube =20g/DM
Then:M=conc÷molarmass=20g/dm÷40g/mol=0.5M
Therefore the Molarity of naoh is 0.5M

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