1 mol of something is 6.022E23 of that thing. (E is 10x, like scientific notation, so 6.022 * 10^23)
Think like how a dozen is 12 or a couple is 2, a mol is just a word used to describe a very, very large number of things (i.e. atoms in a handful of table salt).
The molar mass of sulfur is approximately 32.06 grams/mol. Therefore, 1 mol of sulfur atoms will have a mass of 32.06 grams.
1 mol of octane (C8H18) reacts with 25 mol of oxygen (O2) to produce 8 mol of CO2 and 9 mol of H2O. Therefore, 0.74 mol of oxygen can react with 0.0744 mol of octane.
15.99 x 2 g
To produce 1 mol of water, 2 mol of hydrogen is needed. Therefore, to produce 7.5 mol of water, you would need 15 mol of hydrogen.
It is supposed to be mol/dm-3 Actually, 1 dm cube is the same as 1 litre. Therefore, there is no need of conversion. Both are the same.
1 mol of nitrogen per 1 mol of oxygen. NO2
The molar mass of sulfur is approximately 32.06 grams/mol. Therefore, 1 mol of sulfur atoms will have a mass of 32.06 grams.
6.65X10^5 kj/mol
1 mol of octane (C8H18) reacts with 25 mol of oxygen (O2) to produce 8 mol of CO2 and 9 mol of H2O. Therefore, 0.74 mol of oxygen can react with 0.0744 mol of octane.
15.99 x 2 g
To produce 1 mol of water, 2 mol of hydrogen is needed. Therefore, to produce 7.5 mol of water, you would need 15 mol of hydrogen.
4.3 g * 1 mol/18.02 g * 6.03 kJ/mol
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
1 mol of Ag and 1 mol of Au can be said to contain the same amount of atoms of each element.
1008.4 kJ mol-1
Something like 6x1023 Whatever Avagadro's constant is Something like 6x1023 Whatever Avagadro's constant is
1 mol = 1 mol