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Molecular mass equals 2vapour density?
The molecular mass of a compound is equal to 2 times its vapor density. This relationship is due to the fact that vapor density is defined as the mass of a gas under certain conditions relative to the mass of an equal volume of hydrogen gas, which has a molecular mass of approximately 2.
Which gas has the lowest mass per mole?
Hydrogen gas has the lowest mass per mole, with a molar mass of approximately 2 grams per mole.
Which is more heavier - hydrogen gas or oxygen gas?
Oxygen gas is heavier than hydrogen gas. The molecular weight of oxygen (O2) is 32 g/mol while the molecular weight of hydrogen (H2) is 2 g/mol. Therefore, oxygen gas is heavier than hydrogen gas.
In a laboratory 178.8g of water is separated into hydrogen gas and oxygen gas . The hydrogen gas has a mass of 20.0g. What is the mass of the oxygen gas produced?
It would be 10.8 + 77.3.So that would be 88.1g of water in the scale you are using.
How much hydrogen gas is produced when steam is passed over hot iron?
When steam is passed over hot iron, the reaction produces iron oxide and hydrogen gas. The amount of hydrogen gas produced depends on the reaction conditions such as temperature, pressure, and quantity of iron. From the balanced chemical equation, for every mole of iron that reacts, one mole of hydrogen gas is produced.
What is the relative mass formula of hydrogen gas?
The relative mass of hydrogen gas is calculated by adding the atomic masses of the two hydrogen atoms that make up the gas. Each hydrogen atom has an atomic mass of approximately 1 atomic mass unit (amu), so the relative mass of hydrogen gas is around 2 amu.
Molecular mass equals 2vapour density?
The molecular mass of a compound is equal to 2 times its vapor density. This relationship is due to the fact that vapor density is defined as the mass of a gas under certain conditions relative to the mass of an equal volume of hydrogen gas, which has a molecular mass of approximately 2.
What is hydrogen's atomic mass number?
Hydrogen is a gas. Mass number of it is 2.
What is heavier Hydrogen gas or oxygen gas How do you know?
Oxygen gas is heavier than hydrogen gas. This is because oxygen gas has a molar mass of 32 g/mol, while hydrogen gas has a molar mass of 2 g/mol. The heavier molar mass of oxygen gas contributes to its higher density compared to hydrogen gas.
How many moles of hydrogen gas are in 5.04 grams in hydrogen gas?
To find the number of moles of hydrogen gas, we first need to convert the mass of hydrogen gas from grams to moles using the molar mass of hydrogen gas (2 g/mol). 5.04 grams of hydrogen gas is equal to 5.04 g / 2 g/mol = 2.52 moles of hydrogen gas.
Which gas has the lowest mass per mole?
Hydrogen gas has the lowest mass per mole, with a molar mass of approximately 2 grams per mole.
How many moles are in 18.0grams of hydrogen gas?
To find the number of moles in 18.0 grams of hydrogen gas, you need to divide the given mass by the molar mass of hydrogen gas. The molar mass of hydrogen gas (H2) is about 2.016 grams/mol. So, 18.0 grams / 2.016 grams/mol ≈ 8.93 moles of hydrogen gas.
What would happen if you hold a burning stick under hydrogen gas?
If anything burning is inserted into, or placed around a mass of Hydrogen gas, it will ignite the Hydrogen, causing it to "explode". The resulting explosion is very hot, and if done with too much Hydrogen gas, can be dangerous. Exercise caution when preforming this.
Mass of Hydrogen gas molecule?
The mass of a hydrogen gas molecule (H2) is approximately 2 atomic mass units (amu). This is because each hydrogen atom has a mass of roughly 1 amu, and a hydrogen gas molecule consists of two hydrogen atoms bonded together.
Which is more heavier - hydrogen gas or oxygen gas?
Oxygen gas is heavier than hydrogen gas. The molecular weight of oxygen (O2) is 32 g/mol while the molecular weight of hydrogen (H2) is 2 g/mol. Therefore, oxygen gas is heavier than hydrogen gas.
In a laboratory 178.8g of water is separated into hydrogen gas and oxygen gas . The hydrogen gas has a mass of 20.0g. What is the mass of the oxygen gas produced?
It would be 10.8 + 77.3.So that would be 88.1g of water in the scale you are using.
Hydrogen gas H2 is a promising alternative to fossil fuels How many molecules are present in 1.0 kg of hydrogen gas?
To determine the number of molecules in 1.0 kg of hydrogen gas, we need to convert the mass to moles using the molar mass of hydrogen. The molar mass of hydrogen (H2) is 2.02 g/mol. Then we can use Avogadro's number (6.022 x 10^23) to find the number of molecules in one mole of hydrogen gas.
