27.4 g H2O x 1 mole/18 g = 1.52 moles
6.00 g H2O x 1 mol H2O/18 g H2O = 0.333 moles of water present in 6.00 g of water. How anyone came up with 3.00 moles is a mystery.
48 (g) / 18 (g/mol) = 2.5 mole of water in 48 g
274
3,80 g Zn have 0,058 moles.
Moles = weight in g / atomic weight. So moles in 24.7 g of Ar = 24.7 / 39.948 = 0.62 moles
6,00 g of water contains how 0,33 moles.
6.00 g H2O x 1 mol H2O/18 g H2O = 0.333 moles of water present in 6.00 g of water. How anyone came up with 3.00 moles is a mystery.
10,55 moles of water are obtained.
10 moles of water (molar mass 18.0 g/mol) in 180 g, because 180 /18.0 = 10
NaHCO3 ----> H2O Mass 2.10g 0.045g RAM 84 g/moles 18 g/moles number of moles 0.025moles 0.025moles
48 (g) / 18 (g/mol) = 2.5 mole of water in 48 g
This value is 0,06 moles.
1/18 = 0.0556
The mass of 0,5 moles of water is 9 g.
5.8
274
3,80 g Zn have 0,058 moles.