# What is the density of STP?

One mole of a gas at STP has a volume of

So if we have the molar mass of the gas , just divide it by 22.4 to get the density of that gas. Eg: molar mass of O2 gas = 32 g/mol.

Density = mass/volume.

**22.4 L**.So if we have the molar mass of the gas , just divide it by 22.4 to get the density of that gas. Eg: molar mass of O2 gas = 32 g/mol.

Density = mass/volume.

A.

### What is the density of helium at STP?

1) molar mass of He = 4g volume occupies by 1 mole of He at STP = 22.4 litres therefore density at STP = 4/22.4 =

**0.1786 g/L**2) moles of O2 = 16/32 = 0.5#### What is the density of helium?

Chemical properties of helium - Health effects of heliumAtomic number 2 Atomic mass 4.00260 g.mol ^{-}^{1}Electronegativity according to Pauling unknown Density 0.178*10 ^{-}^{3}g.cm^{-}^{3}at 20 °CMelting point - 272.2 (26 atm) °C #### What is the density of h2?

HydrogenGeneral properties Phase at STP gas Melting point 13.99 K ?(−259.16 °C, ?−434.49 °F) Boiling point 20.271 K ?(−252.879 °C, ?−423.182 °F) Density (at STP) 0.08988 g/L #### What is the density of the gas?

The official IUPAC unit for**gas density**is kg/m^{3}(not g/L). However, it turns out that one kg/m^{3}equals one g/L. Here is a brief video explaining the conversion. One place teachers like to bring**gas density**into play is when you calculate a molar mass of a**gas**using PV = nRT.

B.

### What is the density of sulfur hexafluoride at STP?

What is the density at STP of the gas sulfur hexafluoride, SF6.

What is the molar mass of (NH4)2CO3.

96 g.

**6.52 g/L**.What is the molar mass of (NH4)2CO3.

96 g.

#### What is the density of sulfur hexafluoride at STP?

What is the density at STP of the gas sulfur hexafluoride, SF6.

**6.52 g/L**.

What is the molar mass of (NH4)2CO3.

96 g.#### What is the molar mass of sulfur hexafluoride gas?

Sulfur hexafluorideNames Molar mass 146.06 g/mol Appearance Colorless gas Odor odorless Density 6.17 g/L #### What information do you need to calculate the percentage composition of a compound?

The percent composition of a compound is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the**total**molar mass of the compound.

C.

### What is the density of argon gas at STP?

Gas densities at STP

Gas | Molar Mass (g/mole) | Density at STP (g/L) |
---|---|---|

CH_{4}, methane gas | 16.043 | 0.714 |

CO_{2}, carbon dioxide | 44.009 | 1.96 |

H_{2}, hydrogen gas | 2.015 | 0.090 |

Ar, argon gas | 39.948 | 1.78 |

#### What is the density of argon gas at STP?

Gas densities at STPGas Molar Mass (g/mole) Density at STP (g/L) CH _{4}, methane gas16.043 0.714 CO _{2}, carbon dioxide44.009 1.96 H _{2}, hydrogen gas2.015 0.090 Ar, argon gas 39.948 1.78 #### Is propane gas lighter than air?

**Propane**(also called liquefied petroleum gas (LPG), or LP gas) is typically transported and stored as a very cold liquid, and can cause a “freeze burn” or frostbite if it contacts the skin.**Propane**vapors are heavier**than air**, while natural gas is**lighter than air**.#### What is the density of oxygen gas at?

1.428 g/l

Updated: 2nd October 2019