What is the mass of one mole of heavy water?

Answer 1

The molar mass of water in liquid form is 18.02 g/mol, where hydrogen has a molecular mass of 1.01 g/mol and oxygen has 16 g/mol. Therefore, 2.02 + 16 = 18.02 g/mol. Molar mass is usually expressed in the unit of grams per mole (g/mol). The chemical formula for water is H2O. The molar mass of hydrogegn M(H) is 1.008 g/mol and of oxygen M(O) is 15.999 g/mol, so the molar mass of water is calculated as follows: M(H2O) = 2 x M(H) 1 x M(O) = 2 x 1.008 + 1 x 15.999 = 18.015

Answer 2

The molar mass of heavy water (D₂O) is approximately 20.03 grams per mole. This is calculated by adding the atomic masses of two deuterium atoms (2.0141 g/mol each) and one oxygen atom (15.999 g/mol) in the molecule.

Answer 3

1 mole of heavy water = 20,0276 grams

Mass= Moles x Relative Atomic Mass or Relative Formula Mass

R.F.M of heavy water = H= 2x2=4 (2 is the Mass Number of the isotope 3 of Hydrogen x 2 the amount of the element present)

0= 16x1=+16

R.F.M = 20

Mass = Moles x R.F.M

Mass = 1 x 20

Mass = 20,0276 grams

Answer 4

Heavy water (deuterium oxide, D2O).

To calculate its molarity you need two costants. Its density at 25C and its molar mass. These are 1.107 g/cm3 and 20.0276 g/mol

Molarity = (density / molar mass ) x 1000 moles per litre

= 50.78 Molar

Answer 5

The molar mass of a substance is determined by multiplying the subscript for each element times its atomic weight on the periodic table and adding the results. So, for water, (2 hydrogen atoms x 1.00794) + (1 oxygen atom x 15.9994.) = 18.0153 grams.

Answer 6

The molar mass of H2O: H=1.0079 but, since there are two H atom, we must multiply 1.0079x2= 2.0158 O=15.9994 Then, add 2.0158 + 15.9994 = 18.0152

Answer 7

18.02, but this is a rounded number of course. The actual mass is 18.01528

Answer 8

[2H]2-water or D2O heavy water: molar mass = 20.04 g/mol

Answer 9

A water molecule has two hydrogen atoms attached to an oxygen atom. Their atomic masses are 1 and 16 respectively. So the molecular mass of water is 16+1x2=18u.

Answer 10

it is 18.0153 g/mol