Chemistry, asked by gamerneonchigmailcom, 1 year ago

Calculate the molality of 20% (by mass) solution of K2CO3.
plzz sen me your solve.

saurabh00120: 1.811 m

Answers

Answered by Tanya1257

Refer to the attachment.

Hope this helps you!!

Attachments:

saurabh00120: not molarity...its molality

saurabh00120: its 1.811 molality

Tanya1257: No the molality is 1.44mole.

gamerneonchigmailcom: Wahi to mai bhi sooch raha hu yarr , molality solve karna hai isme

gamerneonchigmailcom: the answer in my book is 1.88 m..

Tanya1257: ohh yeah sorry ...

gamerneonchigmailcom: sorry 1.81m

saurabh00120: yes bro...its 1.811 m

gamerneonchigmailcom: okk

Answered by krimusa7524

Hello buddy

Here is your answer

Attachments:

saurabh00120: molality= no. of moles of solute/mass of solvent

gamerneonchigmailcom: saurabh aap bhi send kar do solve

saurabh00120: ok

gamerneonchigmailcom: Hmmm

saurabh00120: %w/w = 20 20=20×100/100. mass of solute = 20. mass of solution =100. mass of solvent= 100-20= 80. no. of moles of solute= 20/138. mass of solvent in kg=0.080 molality= 1.811 m

saurabh00120: %w/w=mass of solute×100/mass of solution. = 20=20×100/100. (if u have doubt)

gamerneonchigmailcom: thanks bro.

saurabh00120: pleasure

krimusa7524: Check now

gamerneonchigmailcom: thank u

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Calculate the molality of 20% (by mass) solution of K2CO3.plzz sen me your solve.​

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Calculate the molality of 20% (by mass) solution of K2CO3.
plzz sen me your solve.