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Wittaler [7]
2 years ago
10

How much heat is liberated when 40 gram H, gas react with excess O2 gas

Chemistry
1 answer:
Pavel [41]2 years ago
8 0

Answer:wqqqqqqqqqqqqqqgqr

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Explanation:

qbqg4

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Draw a correct Lewis structure for XeI2 (Xe in middle, surrounded by I's ) that puts a 0 formal charge on all atoms. How many lo
Alona [7]

1) The Lewis structure will be:

Xe

|

I--I

In this structure, the xenon atom is surrounded by two iodine atoms, which are bonded to it through single bonds. Each iodine atom has one lone pair of electrons, for a total of 2 lone pairs on the central atom (xenon).

2) The molar mass of the gaseous compound is 0.416 g/mol.

To draw a correct Lewis structure for XeI2, we need to first count the number of valence electrons in the molecule. Xenon is a noble gas and has 8 valence electrons, while iodine has 7 valence electrons for a total of 23 valence electrons. To satisfy the octet rule and put a 0 formal charge on all atoms, we can use the following Lewis structure:

Xe

|

I--I

To find the molar mass of the gaseous compound, we can use the ideal gas law:

M = dRT/P

Where M is the molar mass, d is the density, R is the ideal gas constant, T is the temperature, and P is the pressure.

Given that the density of the gas is 0.3876 grams/142 mL = 0.002736 grams/mL, the temperature is 150 + 273 = 423 K, the pressure is 775 torr = 775/760 atm = 1.0132 atm, and the ideal gas constant is 0.08206 L·atm/mol·K.

We can calculate the molar mass as follows:

M = (0.002736 g/mL) * (0.08206 L·atm/mol·K / (1.0132 atm)) * (423 K)

M = 0.416 g/mol

Learn more about molar mass, here brainly.com/question/12127540

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3 0
1 year ago
Cómo escribir el símbolo Theta
Pani-rosa [81]
Para escribir el símbolo theta, presione 03B8 + Alt + X.
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2 years ago
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Which clue can be used to identify a chemical reaction as a decomposition reaction?
inn [45]

Answer:

plzz mark brainliast:

Explanation:

clue: The reaction has a single reactant.

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3 years ago
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Please help this is due in 30 minutes !!!
tamaranim1 [39]

Answer: so the answer would likely be

Explanation:

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3 years ago
50 pts please help. will give brainliest
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Answer:

1Cu --> 1Cu+2 + 2e

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2 years ago
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