How to solve this question?

My teacher explained this in class but I didn’t understand it at all can anyone help?
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28 Replies
iTeachChem Helper
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flower
flower4d ago
ayo what this seems to be of States of Matter and some Equilibrium or smthing
Sephrina
Sephrina4d ago
equi, pv nrt and solutions ye teen ka mix
iTeachChem
iTeachChem4d ago
haan this is direct share attempt na
YAWN
YAWNOP4d ago
This is how my teacher did it but I dint understand it
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YAWN
YAWNOP4d ago
Could you explain the logic behind it?
Sephrina
Sephrina4d ago
so do u know the basic formula on vapour desnity an all?
iTeachChem
iTeachChem4d ago
noooooooooooooooooooooo these formulae yuck what sephrina said, do you know this?
Sephrina
Sephrina4d ago
i am wondering wht they are maine kabhi nhi dekha hai ye what are those formulas
iTeachChem
iTeachChem4d ago
dont see not worth your time
Sephrina
Sephrina4d ago
basic se line sketch karo and derive ur thing thts the rule
iTeachChem
iTeachChem4d ago
do you follow the t = 0 t = 30 thing?
YAWN
YAWNOP4d ago
Yea Are they not efficient?
iTeachChem
iTeachChem4d ago
they are a cognitive load that are unnecessary pchem needs to happen from first principles :) mug vomit helps in some exams that have minutes = number of qs, agreed whioch part is new? the formula is just taking a weighted avg total mass/total moles = molar mass and vd x 2 = molar mass that is all there is to this q :) (after you do the t = 30 part)
YAWN
YAWNOP4d ago
But in that won’t you get an equation in two variables
Sephrina
Sephrina4d ago
kyu ? aap ik var isko formula ko jaane do jo teacher ne diya aap ik vaar apni understanding se try karo aur agr kuch doubt phir bhi aara to batao
YAWN
YAWNOP4d ago
Theek hai I’ll try it
iTeachChem
iTeachChem4d ago
what are the two variables? i only see x molar mass is vd x2 def hai, look it up online :D
YAWN
YAWNOP4d ago
Haan vo to pata hai When I try to start solving these questions my brain stops working I never know the first step only
Sephrina
Sephrina4d ago
write out given na first and then see konse formula lag sakta hai
YAWN
YAWNOP4d ago
There’s molar mass of d and x right? Vo karta hu Phir aur frustrate ho jata hu
Sephrina
Sephrina4d ago
aree pehle to aap solve karne se phle calm down karo apna mind aur baki chze hata do basic se sochne ka try karo aur apni learnt theory dalna try karo ki uk tht the formula is this ab mereko given ye hai ab mai aisa kya karu ki is chiz se mujhe vo mil jaaye and then keep that chain going till u reach the ans
YAWN
YAWNOP4d ago
I’ll try that thanks🙂
YAWN
YAWNOP4d ago
Yes but how will you find it for D?
iTeachChem
iTeachChem4d ago
yyou have a so you know how much A exists at t = 30 as well you know total moles of C and D molar mass of C is given :) works?

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