5 moles of carbon is 60,055 g.
5 moles of sodium is 114,949 g.
There are 5 formula masses of Na in 5 formula masses of NaCl, as indicated by the fact that the symbol for sodium has no explicit subscript in the formula of NaCl. Neither sodium nor sodium chloride has moles in the strictest sense, since neither of them is covalently bonded.
5
The answer is 10 moles of carbon monoxide.2 C + O2 = 2 CO
Dividing by the molar mass of sodium carbonate, we deduce that there are 4.25 x 10-5 moles in 4.5 x 10-3 grams of sodium carbonate.
Balanced equation. 2C8H18 + 25O2 -> 16CO2 + 18H2O 5.5 moles C8H18 (25 moles O2/2 moles C8H18) = 68.75 moles O2 needed
the formula does not show how many moles are in a compound, but it tells how many atoms of an element that are in the compound...
There are 5 formula masses of Na in 5 formula masses of NaCl, as indicated by the fact that the symbol for sodium has no explicit subscript in the formula of NaCl. Neither sodium nor sodium chloride has moles in the strictest sense, since neither of them is covalently bonded.
1 mole of Sodium Chloride weighs 58.5 grams (1 mole is the same as the molecular weight of a compound. The molecular mass of Sodium Chloride- NaCl is 23 [Na atomic mass] + 35.5 [Cl atomic mass] which is equal to 58.5 grams).Thus 10 moles would weigh 10x58.5 grams = 585 grams.The answer is 585 grams.
5
The answer is 10 moles of carbon monoxide.2 C + O2 = 2 CO
Dividing by the molar mass of sodium carbonate, we deduce that there are 4.25 x 10-5 moles in 4.5 x 10-3 grams of sodium carbonate.
For this you need the atomic mass of Na. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.11.5 grams Na / (23.0 grams) = .500 moles Na
Balanced equation. 2C8H18 + 25O2 -> 16CO2 + 18H2O 5.5 moles C8H18 (25 moles O2/2 moles C8H18) = 68.75 moles O2 needed
Well you can see from your equation that each mole of heptane produces 7 moles of Carbon dioxide when burned so 5 moles of heptane produces 5 X 7 moles of carbon dioxide. I'll let you do the maths.
The answer is o,5 mol.
1 mole contains an Avagadro number so 4.37 x 1018 divided by 6.023 x 1023 = 0.72555 x 10-5 or 7.2555 x 10-6 moles of sodium
If you mean atoms then two, if molecules one.