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ale4655 [162]
3 years ago
12

Consider the reaction H2(g) + I2(g) Double headed arrow. 2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0

.100 M, [I2] = 0.200 M, and [HI] = 3.50 M?
87.5
175
350
613
Chemistry
2 answers:
Alexeev081 [22]3 years ago
8 0

Answer:

613

Explanation:

trust me

irakobra [83]3 years ago
5 0

Answer:

163

Explanation:

hope it helps!

please mark as the brainliest if it is correct!

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Answer:

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5 0
3 years ago
The hydrogen gas produced is collected over water at 25.0 oC. The volume of the gas is 7.80 L, and the total pressure in the gas
Eva8 [605]

Answer:

20.4 grams Zn

Explanation:

To find the mass, you first need to find the moles. This can be found using the Ideal Gas Law equation:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (0.08206 atm*L/mol*K)

-----> T = temperature (K)

Before you can plug the values into the equation, you need to convert Celsius to Kelvin.

P = 0.980 atm                   R = 0.08206 atm*L/mol*K

V = 7.80 L                          T = 25.0 °C + 273.15 = 298.15 K

n = ? moles

PV = nRT

(0.980 atm)(7.80 L) = n(0.08206 atm*L/mol*K)(298.15 K)

7.644 = n(24.466)

0.312 moles = n

Now that you have the number of moles, you can convert it to grams using the atomic mass of zinc. The final answer should have 3 sig figs to match the sig figs in the given values.

Atomic Mass (Zn): 65.380 g/mol

0.312 moles Zn           65.380 grams
-------------------------  x  -------------------------  =  20.4 grams Zn
                                         1 mole

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<span>
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4) In the present reaction:
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