The molar mass is the sum of atomic weight of the atoms contained in a molecule. Example: water, H2O The molar mass is: 2 x 1,008 + 15,999 = 18,015 Molar mass is used in many calculus in chemistry.
Atomic weight of hydrogen is 1,008. Atomic weight of oxygen is 15,999. The sum is the molar mass of H2O: 18,015 g. And 7 H2O is 126,105 g.
Assuming pure calcium carbide: CaC2 + 2 H2O → C2H2 + Ca(OH)2 Molar mass of CaC2 = 64.1 Molar mass of water =18 ∴ no mol of CaC2 = 492/64.1=7.68mol ∴ no mol H2O =2*7.68=15.35mol ∴mass H2O = 15.35*18 = 276.3g of water
You calculate it by using Avogadro's number: 6.022 x10 23 which is one mole of substance. 1.00 x 1024 divided by 6.022 x 1023 = 10 divided by 6.022 = 1.661 mol H2O Use the molar mass of water (18.02 g mol-1) to get to the mass in grams. 18.02 g x 1.661 mol = 29.93 g H2O
Molar mass Hydrazine monohydrate: (N2H4)(H2O) >=> 32.0452 + 18.0153 = 50.0605 g/mol
H2O's molar mass is 18 g/mol.
The molar mass of water (H2O) is 18. Ice is water in it's solid state.
Molar mass of H2O = 18.01528 g/mol
The molar mass is the sum of atomic weight of the atoms contained in a molecule. Example: water, H2O The molar mass is: 2 x 1,008 + 15,999 = 18,015 Molar mass is used in many calculus in chemistry.
Atomic weight of hydrogen is 1,008. Atomic weight of oxygen is 15,999. The sum is the molar mass of H2O: 18,015 g. And 7 H2O is 126,105 g.
18g/mol
The molar mass of an element is its atomic weight in grams. The molar mass of a molecule or compound is the sum of the subscripts times the molar masses in grams. For example, the molar mass of hydrogen, H, is 1.00794g and the molar mass of oxygen, O, is 15.9994g. The molar mass of water, H2O, is (2 x 1.00794g) + (1 x 15.9994g O) = 18.01528g.
Water (H2O) has a molar mass of 18 grams, if that's what you mean.
Divide mass of 27 g H2O by its molar mass of 18.0 g.mol−1 H2O and you get the number of moles: 1.5 mole H2O
1. Find the molar mass of the hydrate.Find the molar mass of the water molecules (18.01528 x # water molecules) and of the anhydrate; add the values together to find the molar mass of the hydrate.Molar Mass Water + Molar Mass Anhydrate = Molar Mass Hydrate2. Find the percent of water in hydrate.Divide the molar mass of water by the molar mass of hydrate; multiply by 100%.- Mass waterMass hydrate x 100%
Scandium carbonate, Sc2(CO3)3. x H2O; molecular mass is 296,96.
Assuming pure calcium carbide: CaC2 + 2 H2O → C2H2 + Ca(OH)2 Molar mass of CaC2 = 64.1 Molar mass of water =18 ∴ no mol of CaC2 = 492/64.1=7.68mol ∴ no mol H2O =2*7.68=15.35mol ∴mass H2O = 15.35*18 = 276.3g of water