To find atoms in number of moles you multiply by avogadra's number (6.022x10^23) then multiply by the number of atoms, in this case it is one because carbon is a monotomic element. The answer is 9.03x10^23 atoms C
C11H15NO2 or 11 Carbon atoms, 15 Hydrogen atoms, 1 Nitrogen atom and 2 Oxygen atoms.
.15
In total Their Are 15 Atoms IN 3cH4
* Magnesium phosphate monobasic (Mg(H2PO4)2) -> 15 atoms * Magnesium phosphate dibasic (MgHPO4) -> 7 atoms * Magnesium phosphate tribasic (Mg3(PO4)2) -> 13 atoms
There are 6.02 x 10^23 molecules per mole of any substance: this is 0.6 trillion trillion molecules.A mole of water is only 18 grams. A regular wood pencil weighs about half of that. There will be fewer molecules of wood but more atoms per molecule. But you are still talking a range of hundreds of billions of trillions of atoms (10^22) in an item the size of a pencil.
15
In an alkane the number of hydrogen atoms is two greater than twice the number of carbon atoms. If we reverse this rule, we find that the number of carbon atoms is one less than half the number of hydrogen atoms. 32/2=16 16-1=15 So our alkane would have 15 carbon atoms. This alkane would be pentadecane or one of its isomers.
Approx. 9.1024 atoms.
4.5*10^23
The answer is 15 carbon atoms.
9.3*10^15 atoms nickel = ? grams take the number of atoms, divide by one mole and then times by the molar mass of nickel 9.3*10^15atoms /6.02*10^23 atom/mol * 58.69 g/mol =9.1*10^-7 grams
Atomic number is the number of protons in an atom, not the number of atoms. The element with the atomic number 15 is phosphorus.
In one (1) molecule CO2 there are 3 atoms ( 1 C-atom and 2 O-atoms), so in 5 molecules CO2 (5CO2) there are 5 x 3 (= 15) atoms. Thus fifteenis the answer to you.
C11H15NO2 or 11 Carbon atoms, 15 Hydrogen atoms, 1 Nitrogen atom and 2 Oxygen atoms.
0.67 mol
There are 5 atoms altogether, 1 Magnesium atom, 1 Carbon atom and 3 oxygen atoms.
If the compound stated in the question exists, its gram molecular mass is (14 times the gram atomic mass of carbon) plus (9 times the gram atomic mass of hydrogen) + (15 times the gram atomic mass of chlorine), or about 709 grams. Therefore, the number of molecules of the compound in 1.0 gram of it is (1.0)(Avogadro's number)/709 or about 8.49 X 1020. Each molecule contains 14 (exact) carbon atoms, for a total of 1.2 X 1022 atoms of carbon, to the justified number of significant digits.