English, asked by omdoley, 8 months ago

define molality(m).calculate the molality of solution if 2.5g ethonoic acid is dissolved in 75g benzeae​

Answers

Answered by simpleboy143
0

Answer:

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Answered by kiyara01
3

The molar mass of ethanoic acid is 2(12)+2(16)+4(1)=60 g/mol. The mass of ethanoic acid is divided with molar mass of ethanoic acid to obtain number of moles of ethanoic acid.

Number of moles of ethanoic acid =

60g/mol

2.5g

=0.04167mol

The mass of benzene is 75 grams or

1000

75

=0.075 kg.

The molality of ethanoic acid in benzene is the ratio of the number of moles of ethanoic acid to the mass of benzene (in kg).

It is

0.075kg

0.04167mol

=0.556m

hope it will help you

mark as brainlest answer please

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