Question

True or false. If false, write down a correct statement

1.One mole of ammonia gas and one mole of oxygen gas both have the same number of atoms at room temperature.

2.One mole of water in the gas phase occupies a volume of 22.4 dm3 at stp

Answer 1

Explanation:

1. is true mole=no. of atoms/avagadro Number

so mole is 1 for both ammonia and oxygen so the no. of atom also same

2.

true as 1 litre = 1 dm^3

Answer 2

Answer:

The given two statements are true.

Explanation:

The given two statements are true.

• Ammonia exists as a colorless, poisonous gas with a standard noxious odor. It happens in nature, primarily produced by anaerobic decay of plant and animal matter; and it also has been witnessed in outer space. Some plants, especially legumes, in combination with rhizobia bacteria, “fix” atmospheric nitrogen to produce ammonia.
• Oxygen exists as a colorless, odorless reactive gas and the life-supporting component of air. It comprises just under 21% of the earth's atmosphere and exists as the most abundant element in the earth's crust, especially in the form of oxides, silicates, and carbonates.

Statement 1 exists true mole=no. of atoms/Avogadro Number so mole is 1 for both ammonia and oxygen so the no. of the atom is also identical.

Statement 2 exists true

Standard temperature and pressure abbreviated STP, guides nominal conditions in the atmosphere at sea level. This value exists necessary for physicists, chemists, engineers, pilots, and navigators.

One mole of water in the gas phase populates a volume of 22.4 dm3 at stp, as 1 liter = $1 dm^3$.

SPJ2