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Chemical Problems

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 H
He
2 Li
Be
Enter the number of elements
in the box below the element
B
C
N
O
F
Ne
3 Na
Mg
Al
Si
P
S
Cl
Ar
4 K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
5 Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
6 Cs
Ba
- Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
7 Fr
Ra
- Rf
Db
Sg
Bh
Hs
Mt
Uun
Uuu
Uub
- La
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
- Ae
Th
Pa
U
Np
Pu
Am
Cm
Bk
Cf
Es
Fm
Md
No
Lr
Calculate,
Gram Molecular Weight and Percentage Composition
the quantity of a constituent with known weight of the compound
the weight of the compound with given weight of the constituent



Chemically equivalent quantities





















Gram Molecular Weight

Gram Molecular Weight =
Percentage Composition:
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Quantity of the constituent with known weight of the compound

Gram Molecular Weight =
Quantity of the Compound is mg in mL
Calculate quantity of the individual element of the compound in mL
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Weight of the Compound

Gram Molecular Weight =
Gram Atomic Weight of the chosen element
Quantity of the Compound supplying µg of the chosen element =
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Chemically equivalent quantities

(To calculate the quantity of substituent)

To calculate chemically equivalent quantities of
    hydrous or anhydrous form of the same compound
    different ingredient

Quantity of the ingredient required g
Gram molecular weight of the recommended ingredient
Gram molecular weight of the ingredient chosen as substituent
Percentage purity of the ingredient chosen as substituent
Quantity of the substituent required =
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