how many moles of sulfur are present in 3.4 moles of Al2(SO4)3
0,025 moles nitrogen
Quinine - C20H24O2N2 - contain 74,074 % carbon; the molar mass is 324,42 g.
10 grams NO2 (1 mole NO2/46.01 grams) = 0.217 moles nitrogen dioxide ======================
first find the number of moles of nitrogen in 1.00g than times by 6.02*10^23 n(N)=1/14 * 6.02*10^23 =4.2*10^22 atoms
The answer is 0,274 moles.
10 g of carbon is equivalent to 0,8326 moles.
Quinine - C20H24O2N2 - contain 74,074 % carbon; the molar mass is 324,42 g.
The clarity of this question is not clear. I will assume grams and possibly moles as that number does not look like a number of atoms. Grams first, then moles. 4.0 X 102 grams quinine (1 moleC20H2N2O2/302.236 grams)(2 moles N/1 mole C20H2N2O2) = 2.6 moles nitrogen =============== Pretty much the same procedure if you meant moles just no dividing out a mass.
You can figure this question out by looking up quinine to find its chemical formula. The number of moles of hydrogen will be the number of hydrogen in the chemical formula. Once you see the chemical formula is C20H24N2O2 then you know that there are 24 moles of hydrogen for every one mole of quinine.
10 moles of nitrogen dioxide are needed to react with 5,0 moles of water.
The reaction of nitrogen with hydrogen to form ammonia is: N2 +3H2 = 2NH3 Therefore to make 10 moles of ammonia you need 5 moles N2 and 15 moles H2
10 grams NO2 (1 mole NO2/46.01 grams) = 0.217 moles nitrogen dioxide ======================
Aprox. 4.65 X 10^-4
Depends on what substance is being formed. If it's nitric oxide (NO), then 5. If it's nitrogen dioxide (NO2), then 10. If nitrate (NO3), then 15.
Assuming ideal behaviour, 1 mole of any gas occupies 22.4L at STP. So, moles of 10L = 10/22.4 moles = 0.4464 moles
first find the number of moles of nitrogen in 1.00g than times by 6.02*10^23 n(N)=1/14 * 6.02*10^23 =4.2*10^22 atoms
The answer is 10 moles.
There is one atom in nitrogen there is not one atom of nitrogen, there is one molecule of nitrogen. There is 6.02 * 10^23 atoms in 1 mole of nitrogen. Or simply the natural state of nitrogen is n2. or two nitrogen atoms to a molecule. =]