Concentration Units equations

Question 1

molarity

Answer 1

MB= nB/V mole solute/L solution

Question 2

molality

Answer 2

mB= nB/(Wa/1000) mole solute/kg solvent

Question 3

normality

Answer 3

Nb= (Wb * valence)/ (MW * V) gvalence/MW L

Question 4

mole fraction

Answer 4

Vb= nB/(nA + nB)

Question 5

molecule of substance

Answer 5

6.022e23 * mole

Question 6

percent by weight

Answer 6

%w/w= Wb/(WA+WB) *100 g solute/total g

Question 7

percent by volume

Answer 7

%v/v= Vb/V*100 ml/total ml

Question 8

percent weight in volume

Answer 8

%w/v= WB/V*100 g solute/total ml solution

Question 9

%mg

Answer 9

WB/V *10e5

Question 10

specific gravity

Answer 10

%wv/%ww

Question 11

converting mole fraction to molar

Answer 11

mB= (XB * 1000)/ (MWa (1-XB))

Question 12

Beer’s Law equation and define terms

Answer 12

Abs=Ascl
As= absorptivity
c=concentration
l=pathlength

Question 13

transmittance

Answer 13

Abs=-logT

T=10^-Abs

Question 14

Nernst distribution law

Answer 14

k= Cu/Cl 
Cu= upper
Cl= lower

Question 15

fraction in upper phase

Answer 15

p= KU/(KU+1)

Question 16

fraction in lower phase

Answer 16

q= 1/(KU+1)

Question 17

ratio of phase volumes

Answer 17

U=Vu/Vl
Vu= volume upper
Vl= volume lower

Question 18

fraction of total extracted in nth extraction

Answer 18

pq^(n-1)

Question 19

Fraction remaining

Answer 19

q^n

Question 20

total fraction remaining

Answer 20

1-fraction remaining

Question 21

finding initial concentration from y intercept

Answer 21

C=ka/y intercept

Question 22

true partition coefficient

Answer 22

slope= (qk+1)/(C)

Question 23

Lag time

Answer 23

if drug in donor compartment remains constant:

tL= h/6P

Question 24

the 3 equations for donor compartment that changes over time

Answer 24

1. k=PS/Vd
2. P= kVd/S
3. logCt= logC0- (K/2.303)t

Question 25

disintegration time

Answer 25

DT= 6(0.693/kd)

Question 26

how to find ks

Answer 26

slope= -ks/2.303

Question 27

M equation is donor compartment stays constant

Answer 27

M=PSCd(t-tL)