the sodium hydroxide solution in this investigation contains 80 grams per dm^3 the students use 40cm^3 of sodium hydroxide solution. calculate the mass of sodium hydroxide in 40cm^3

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14-04-2018
Chemistry

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the sodium hydroxide solution in this investigation contains 80 grams per dm^3 the students use 40cm^3 of sodium hydroxide solution. calculate the mass of sodium hydroxide in 40cm^3

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kenmyna kenmyna · Answer 1 · 2018-04-24T09:14:35+02:00

kenmyna kenmyna

24-04-2018

The mass of sodium hydroxide in 80 grams per 40 cm^3 is calculated as follows
we well know 1 dm^3 = 1000cm^3
if 80grams is in 1000Cm^3
what about 40 cm^3
by cross multiplication

40 cm^3 x80 grams/ 1000cm^3 =3.2 grams

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