This will depend on the substance you are talking about. One mole is by definition equal to 6.02 x 1023 molecules or atoms of the substance, but the weight of one molecule or atom will vary depending on the substance you are referring to.
To figure out the number of grams in one mole of a substance, you need to calculate the molecular weight of the substance. This is done by adding the atomic weight of each ATOM in the molecule. For instance, in the molecule ethanol (C2H6), you would add the weight of the two carbon molecules (12 x 2) to the weight of the six hydrogen molecules (1 x 6) which gives you a total of 30. Therefore, for ethanol, there are 30 g in one mole of ethanol.
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
25x(2/18)=2.78g of hydrogen 25x(16/18)=22.22g of oxygen
HCN is hydrocyanic acid and contains no oxygen, so producing it doesn't require oxygen. So zero grams.
Avogadro's number. I will show you. 18.02 grams water (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O) = 6.021 X 1023 atoms of water ----------------------------------------
it depends on how many grams of it you are dealing with
0.87 grams water (1 mole H2O/18.016 grams)(1 mole O/1 mole H2O)(6.022 X 1023/1 mole O) = 2.9 X 1022 atoms of oxygen --------------------------------------
18 grams
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
18 grams of water is 1 mole water. Water is H2O. That means there's 2 moles H and 1 Mole O. We're looking for "O", and there's one 1. So find the molar mass of O. (which is approx. 16) so 16 * 1 = 16.
To have 1 mole of H2O, you would need to weigh out approximately 18 grams of water (H2O). This is because 1 mole of water molecules (H2O) has a molar mass of about 18 grams/mol (2 grams/mol for hydrogen x 2 atoms + 16 grams/mol for oxygen).
There are 7.24 x 10^23 atoms of oxygen in 13 grams of water. This calculation is based on the molar mass of water (18.015 g/mol) and the fact that each water molecule contains two hydrogen atoms and one oxygen atom.
The molar mass of sulfuric acid (H2SO4) is 98.08 grams/mole. Therefore, there are 98.08 grams in 1 mole of sulfuric acid.
The molar mass of salt (NaCl) is 58.44 grams per mole. Therefore, there are 58.44 grams in 1 mole of salt.
45 grams H20 x (1 mole H20/18 grams H2O) x (6.02E23 molecules H20/1 mole H2O) the grams H2O and moles H2O cancel out. When you punch it into your calculator, the answer comes out to: =1.505E24 molecules H2O
1 mole H2O = 18.02g --- water is H2O ... 2 x 1.008 + 1 x 15.996 = 18.012 g/mole = 18.01 grams
CaCO3 + 2HCl -> CaCl2 + CO2 + H2O 1 tonne = 2000 lbs ( I guess this is what you mean ) 2000 lbs CaCO3 (454 grams/1 lb)(1 mole CaCO3/100.09 grams)(1 mole H2O/1 mole CaCO3)(18.016 grams/1 mole H2O) = 163438.1856 grams of water ---------------------------- 163438.1856 grams (1 lb/454 grams) = 360 pounds of water -------------------------------
25x(2/18)=2.78g of hydrogen 25x(16/18)=22.22g of oxygen