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3 years ago

what is the mass of carbon dioxide which contain the same number of molecules as are contained in 14 gram of oxygen?

Chemistry

1 answer:

Ratling [72]3 years ago

3 0

Answer:

Mass of CO2 WILL BE ~ 9.33 g

Explanation:

Moles of O2 = 14/18

Let the mass of CO2 be x

Then moles of CO2 will be = x/12

moles of CO2 = moles of O2

x/12 = 14/16

x = 9.33 grams

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¿Qué tipo de reacción es la siguiente: 2H2 + O2 → 2H2O ?

Softa [21]

Answer:

Respuesta. Se llama una reacción por combinación o síntesis:

8 0

2 years ago

9. Given the following reaction:CO (g) + 2 H2(g) CH3OH (g)In an experiment, 0.45 mol of CO and 0.57 mol of H2 were placed in a 1

WITCHER [35]

Answer:

$Keq=11.5$

Explanation:

Hello,

In this case, for the given reaction at equilibrium:

$CO (g) + 2 H_2(g) \rightleftharpoons CH_3OH (g)$

We can write the law of mass action as:

$Keq=\frac{[CH_3OH]}{[CO][H_2]^2}$

That in terms of the change $x$ due to the reaction extent we can write:

$Keq=\frac{x}{([CO]_0-x)([H_2]_0-2x)^2}$

Nevertheless, for the carbon monoxide, we can directly compute $x$ as shown below:

$[CO]_0=\frac{0.45mol}{1.00L}=0.45M\\$

$[H_2]_0=\frac{0.57mol}{1.00L}=0.57M\\$

$[CO]_{eq}=\frac{0.28mol}{1.00L}=0.28M\\$

$x=[CO]_0-[CO]_{eq}=0.45M-0.28M=0.17M$

Finally, we can compute the equilibrium constant:

$Keq=\frac{0.17M}{(0.45M-0.17M)(0.57M-2*0.17M)^2}\\\\Keq=11.5$

Best regards.

3 0

3 years ago

Nitrogen dioxide gas is dark brown in color and remains in equilibrium with dinitrogen tetroxide gas, which is colorless. 2NO2(g

ss7ja [257]

Answer:

The forward reaction is exothermic.

Explanation:

Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.

When the mixture turned darker brown, this means that the reaction is shifted towards the left direction (reactants side).

The temperature is increased and the reaction shifted to the reverse direction, this means that the forward direction is exothermic.

Exothermic reaction releases heat and when increasing the temperature, the reaction will be shifted to the reverse direction to suppress the effect of increasing the temperature.
<em>So the right choice is: The forward reaction is exothermic. </em>

4 0

3 years ago

When a planet has the illusion of moving backwards or bouncing up and down it is exhibiting what?

Goryan [66]

Answer: It is exhibiting retrogade motion.

7 0

3 years ago

Will give brainlsit need answers asap!

k0ka [10]

Answer:

120 g of NaCl in 300 g H20 at 90 C

Explanation:

At x = 90 go vertical to the line for NaCl...then go left to the y-axis to find the solubility in 100 g H20 = 40

we want 300 g H20 so multiply this by 3 to get 120 gm of NaCl in 300 g

7 0

2 years ago

what is the mass of carbon dioxide which contain the same number of molecules as are contained in 14 gram of oxygen?​

what is the mass of carbon dioxide which contain the same number of molecules as are contained in 14 gram of oxygen?