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IrinaVladis [17]
3 years ago
8

Methanol, CH3OH, formerly known as wood alcohol, is manufactured commercially by the following reaction A 1.500-L vessel was fil

led with 0.1500 mol CO and 0.3000 mol H2. When this mixture came to equilibrium at 500 K, the vessel contained 0.1187 mol CO. How many moles of each substance were in the vessel?
Chemistry
1 answer:
cupoosta [38]3 years ago
3 0

Answer : The moles of CO,H_2\text{ and }CH_3OH are, 0.1187, 0.2374 and 0.0313 moles respectively.

Explanation : Given,

Initial moles of CO = 0.15 mole

Initial moles of H_2 = 0.3 mole

Moles of CO at equilibrium = 0.1187 mole

The given equilibrium reaction is,

                             CO+2H_2\rightleftharpoons CH_3OH

Initial moles          0.15    0.3          0

At equilibrium  (0.15-x)  (0.3-2x)    x

As we are given that,

Moles of CO at equilibrium = 0.1187 mole = 0.15 - x

0.15 - x = 0.1187

x = 0.0313

Moles of H_2 at equilibrium = 0.3 - 2x = 0.3 - 2(0.0313) = 0.2374 mole

Moles of CH_3OH at equilibrium = x = 0.0313 mole

Therefore, the moles of CO,H_2\text{ and }CH_3OH are, 0.1187, 0.2374 and 0.0313 moles respectively.

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I NEED HELP ASAP!!!
Rus_ich [418]

Explanation:

To answer this question, we'll need to use the Ideal Gas Law:

p

V

=

n

R

T

,

where

p

is pressure,

V

is volume,

n

is the number of moles

R

is the gas constant, and

T

is temperature in Kelvin.

The question already gives us the values for

p

and

T

, because helium is at STP. This means that temperature is

273.15 K

and pressure is

1 atm

.

We also already know the gas constant. In our case, we'll use the value of

0.08206 L atm/K mol

since these units fit the units of our given values the best.

We can find the value for

n

by dividing the mass of helium gas by its molar mass:

n

=

number of moles

=

mass of sample

molar mass

=

6.00 g

4.00 g/mol

=

1.50 mol

Now, we can just plug all of these values in and solve for

V

:

p

V

=

n

R

T

V

=

n

R

T

p

=

1.50 mol

×

0.08206 L atm/K mol

×

273.15 K

1 atm

= 33.6 L

this is not the answer but it will help you

do by the formula it is on the answer

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3 years ago
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