hydrogen chloride = H+1, Cl-1 = HCl
H = 1.008
Cl = 35.453
HCl = 36.458 g/mol
21.1 g x 1 mol HCl/36.458g = .579 mol HCl
The ions of hydrogen chloride balance out so the formula is HCl. You add the atomic weights of the individual elements to get a grams/mole for the molecule HCl. You take the information that was given, 21.1g of HCl, and multiply it by the fact that 1 mole of HCl is 36.458g. Grams cross out and you're left with 21.1 x 1 mol / 36.458 = .579 mol. This is how many moles are in 21.1g of HCl.
The molar mass of hydrogen chloride is approximately 36 g (use a Periodic Table for more precise masses). This means that one mole of hydrogen chloride has that mass. To answer your question, you can set up a proportion, or divide 21.2 g by 36 g.
21.99 grams H2O (1mol H2O/18.016 grams)
= 1.221 moles H2O
I don't know. Try asking someone else.
21.0 mol
There are 10 moles present in 585 g of sodium chloride.
There is 1 hydrogen atom and 1 chlorine atom in Hydrogen Chloride.
The atomic mass of hydrogen is 1.008 and that for chlorine is 35.45. The moles of hydrogen available are therefore 0.490/1.008 = 0.486 and the moles of chlorine available, 50/35.45, are greater than 1. Each molecule of hydrogen chloride requires one atom each of chlorine and hydrogen. Therefore, with the specified conditions, hydrogen is stoichiometrically limiting, and 0.486 moles of HCl can be made.
7: Molecules of HCl and KCl have the same number, 1, or chlorine atoms per mole; therefore, if HCl reacts completely with potassium, the same number of moles of potassium chloride as the number of moles of hydrogen chloride present will be formed. (For an ionic compound such as KCl, the term "formula unit" is preferable to "mole", but the mathematical consequences are the same.)
0.1 Moles
There are 10 moles present in 585 g of sodium chloride.
The number of moles is 18.56.
Methane (CH4) has four atoms of hydrogen per molecule. If there are 3 moles of methane, then there are 12 moles of hydrogen.
3.45/(37.5+1)
2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6
10 moles of sodium chloride have 584,397 g.
There is 1 hydrogen atom and 1 chlorine atom in Hydrogen Chloride.
This is carbon tetra chloride. there are 0.3636 moles in this mass.
3.01 x 10 to the 23 power of molecules
The atomic mass of hydrogen is 1.008 and that for chlorine is 35.45. The moles of hydrogen available are therefore 0.490/1.008 = 0.486 and the moles of chlorine available, 50/35.45, are greater than 1. Each molecule of hydrogen chloride requires one atom each of chlorine and hydrogen. Therefore, with the specified conditions, hydrogen is stoichiometrically limiting, and 0.486 moles of HCl can be made.
One molecule has four H atoms.So two moles have 8 moles
7: Molecules of HCl and KCl have the same number, 1, or chlorine atoms per mole; therefore, if HCl reacts completely with potassium, the same number of moles of potassium chloride as the number of moles of hydrogen chloride present will be formed. (For an ionic compound such as KCl, the term "formula unit" is preferable to "mole", but the mathematical consequences are the same.)