What about this coardboard cube? What would you like to know? Its dimension
The molar volume of a gas at STP is 22.4 liters/mol. The molar mass of hydrogen bromide is 80.9 g/mol. Therefore, the density of hydrogen bromide at STP is 80.9 g/mol / 22.4 L/mol = 3.61 g/L.
At standard temperature and pressure. This means that, more or less, there are 6.022 X 10^23 diatomic molecules of H2 in that much volume. ( the volume not being under more than standard pressure; 760mm/Hg ) In twice the volume about twice the molecules under STP.
No. A liter is a volume measurement for fluids (liquids and gases). A mole is 6.022 x 1023 of anything. In gases at STP, 22.4L = 1mole.
You can tell that there is more oxygen in hydrogen peroxide than in water because hydrogen peroxide has an extra oxygen atom compared to water. The chemical formula for hydrogen peroxide is H2O2, while the formula for water is H2O. This extra oxygen in hydrogen peroxide makes it a more oxidizing chemical compared to water.
Ther answer is none! ammonium bromide is made from hydrogen bromide and ammonia NH3 + HBr = NH4Br i mole of each makes 1mole of ammonium salt.
At NTP (standard temperature and pressure), 1 mole of any ideal gas occupies approximately 22.4 liters of volume.
The number of Avogadro is 6,022 140 857(74).10e23.
To find the number of moles of hydrogen sulfide, divide the given mass by the molar mass of hydrogen sulfide. The molar mass of hydrogen sulfide is approximately 34.08 g/mol. Thus, 64.6 g / 34.08 g/mol = 1.9 moles of hydrogen sulfide in the sample.
At standard temperature and pressure (STP), the volume of 1 mole of gas is 22.4 liters. Therefore, a steel cylinder with a volume of 45 liters would contain 45/22.4 = 2.008 moles of gas.
The molar mass of hydrogen is approximately 1 g/mol and the molar mass of nitrogen is approximately 14 g/mol. Since nitrogen is 14 times heavier than hydrogen, equivalently, 7.00g of nitrogen contains the same number of atoms as 98.0g of hydrogen.
To calculate the number of atoms in a block of aluminum, you would first find the volume of the block (2 cm x 4 cm x 1 cm) and then divide it by the volume of a single aluminum atom. Aluminum has a density of 2.7 g/cm³ and an atomic mass of 26.98 g/mol, allowing you to derive the molar volume and subsequently obtain the number of atoms in the block.
120.4