Solutions - formula sheet.pdf 12TH IMPORTANT FORMULA SHEET CHAP 3 CHEMISTRY

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12TH IMPORTANT FORMULA SHEET CHAP 3 CHEMISTRY

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CHEMISTRY
F sh t
Class 12
th

Designed by

AAFREEN SHAIKH

 Volume percentage (V/V)
&#3627408535;&#3627408528;&#3627408525;&#3627408534;&#3627408526;&#3627408518; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
Volume % =
??????&#3627408528;&#3627408525;&#3627408534;&#3627408526;&#3627408518; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527;
× 100
 Mass by volume percentage (w/v)
&#3627408526;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
Mass by volume % =
&#3627408535;&#3627408528;&#3627408525;&#3627408534;&#3627408526;&#3627408518; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527;
× 100
 Parts Per Million (ppm)
&#3627408526;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
ppm =
&#3627408500;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527;
× 10
6

 Mole fraction
&#3627408527;&#3627408528;.&#3627408528;&#3627408519; &#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
χ =
??????&#3627408528;&#3627408533;&#3627408514;&#3627408525; &#3627408527;&#3627408528;.&#3627408528;&#3627408519; &#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527;


 Mass Percentage (w/w)
&#3627408526;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
Mass % =
&#3627408500;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527;
× 100

Total pressure (P) = PA + PB
= P
°
A XA + P
°
B XB
 Henry’s law
P = KHX
P = Partial pressure
KH = Henry's law constant
x = mole fraction of the gas

 Molality (m)
m =
&#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
&#3627408526;&#3627408514;&#3627408532;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408535;&#3627408518;&#3627408527;&#3627408533; ൫&#3627408524;&#3627408520;൯

 Raoult’s law

 Molarity (M)
M =
&#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;&#3627408518;
&#3627408535;&#3627408528;&#3627408525;&#3627408534;&#3627408526;&#3627408518; &#3627408528;&#3627408519; &#3627408532;&#3627408528;&#3627408525;&#3627408534;&#3627408533;??????&#3627408528;&#3627408527; ሺ&#3627408499;ሻ

P = PA = P
°
A XA
&#3627408503;
°
?????? − &#3627408503;
&#3627408503;
°
??????
= ??????
PA = partial vapour pressure of A
PB = partial vapour pressure of B
P°A = Vapour pressure of pure A
P°B = Vapour pressure of pure B

 Depression of freezing point
ΔTf = Kf m
Kb = ebulliscopic constant
Kf = cryoscopic constant
C = Molarity
R = rate constant
T = temperature
 Osmotic pressure (π)
π = CRT
 Van’t Hoff factor (i)
&#3627408502;&#3627408515;&#3627408532;&#3627408518;&#3627408531;&#3627408535;&#3627408518;&#3627408517; &#3627408516;&#3627408528;&#3627408525;&#3627408525;??????&#3627408520;&#3627408514;&#3627408533;??????&#3627408535;&#3627408518; &#3627408529;&#3627408531;&#3627408528;&#3627408529;&#3627408518;&#3627408531;&#3627408533;??????
i =
&#3627408516;&#3627408514;&#3627408525;&#3627408516;&#3627408534;&#3627408525;&#3627408514;&#3627408533;&#3627408518;&#3627408517; &#3627408516;&#3627408528;&#3627408525;&#3627408525;??????&#3627408520;&#3627408514;&#3627408533;??????&#3627408535;&#3627408518; &#3627408529;&#3627408531;&#3627408528;&#3627408529;&#3627408518;&#3627408531;&#3627408533;??????
i =
&#3627408501;&#3627408528;&#3627408531;&#3627408526;&#3627408514;&#3627408525; &#3627408526;&#3627408528;&#3627408525;&#3627408514;&#3627408531; &#3627408526;&#3627408514;&#3627408532;&#3627408532;
??????&#3627408515;&#3627408527;&#3627408528;&#3627408531;&#3627408526;&#3627408514;&#3627408525; &#3627408526;&#3627408528;&#3627408525;&#3627408514;&#3627408531; &#3627408526;&#3627408514;&#3627408532;&#3627408532;
i =
&#3627408527;&#3627408528;. &#3627408528;&#3627408519; &#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408514;&#3627408519;&#3627408533;&#3627408518;&#3627408531; &#3627408514;&#3627408532;&#3627408532;&#3627408528;&#3627408516;??????&#3627408514;&#3627408533;??????&#3627408528;&#3627408527;/&#3627408517;??????&#3627408532;&#3627408532;&#3627408528;&#3627408516;??????&#3627408514;&#3627408533;??????&#3627408528;&#3627408527;
&#3627408527;&#3627408528;. &#3627408528;&#3627408519; &#3627408526;&#3627408528;&#3627408525;&#3627408518;&#3627408532; &#3627408515;&#3627408518;&#3627408519;&#3627408528;&#3627408531;&#3627408518; &#3627408514;&#3627408532;&#3627408532;&#3627408528;&#3627408516;??????&#3627408514;&#3627408533;??????&#3627408528;&#3627408527;/&#3627408517;??????&#3627408532;&#3627408532;&#3627408528;&#3627408516;??????&#3627408514;&#3627408533;??????&#3627408528;&#3627408527;
 Modified form of Colligative properties
1
2
&#3627408503;
°
??????
ΔTb = ?????? Kb m
&#3627408503;
°
??????− &#3627408503;
= ?????? ??????

PA = partial vapour pressure of A
PB = partial vapour pressure of B
P°A = Vapour pressure of pure A
P°B = Vapour pressure of pure B

 Elevation of boiling point
ΔTb = Kb m

 Degree of Disassociation
α =
?????? − ??????
&#3627408527; − ??????
 Degree of association
?????? − ??????
α =
&#3627408527;
??????
− ??????
n = number of ions

ΔTf = ?????? Kf m
π = ?????? CRT

Solutions - formula sheet.pdf 12TH IMPORTANT FORMULA SHEET CHAP 3 CHEMISTRY

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