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MaRussiya [10]
3 years ago
8

What is the mole ratio of H2O to C8H8?

Chemistry
1 answer:
zepelin [54]3 years ago
4 0

Answer:

Mole ratio for a compound

The chemical formula tells us the mole ratio.

CO2 = 1 CO2 molecule : 1 C atom : 2 O atoms.

Mole ratio for a reaction

The balanced chemical reactions tells us.

C12H22O11 + 12 O2  12 CO2 + 11 H2O

1 C12H22O11 molecule: 12 O2 molecules : 12 CO2

molecules : 11 H2O molecules.

Applications of the mole ratio concept

grams <--> moles <--> moles <--> grams

Explanation:

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3 years ago
A student prepares a 0.61mM aqueous solution of propionic acid C2H5CO2H. Calculate the fraction of propionic acid that is in the
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Answer:

The 13.76% of propionic acid is in the dissociated form in the solution

Explanation:

Concentration of propionic acid = c = 0.61mM = 0.61\times 10^{-3}M

mM=10^{-3}M

Degree of dissociation = α

C2H5CO2H\rightleftharpoons C2H5COO^-+H^+

At initial

c                             0   0

At equilibrium

c - cα                     cα   cα

The value of dissociation constant of propionic acid = K_a=1.34\times 10^{-5}

The expression of dissociation constant of propionic acid is given by :

K_a=\frac{c\times alpha c\times \alpha}{c(1-\alpha )}

K_a=\frac{c\alpha ^2}{(1-\alpha )}

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The 13.76% of propionic acid is in the dissociated form in the solution

4 0
3 years ago
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