A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
1 mole of any substance has 6.022 x 1023 atoms. Therefore, two moles would have
2 x 6.022 x 1023 atoms.
58.7g times avagadros number. 6.02x10^23
Nickel Hydroxide is Ni(OH)2. So 1 molecule of Nickel Hydroxide contains 2 oxygen atoms.
The answer is 6,31 moles Ag.
200
A 88,1 gram sample of Ag contain 4,9185.10e23 atoms.
3.6 moles hydrogen atoms (1 mole water/2 mole H)(6.022 X 1023/1 mole water molecules) = 1.1 X 1024 molecules of water =======================
Approx. 9.1024 atoms.
Nickel Hydroxide is Ni(OH)2. So 1 molecule of Nickel Hydroxide contains 2 oxygen atoms.
1.7-10^24
Avogadro's number times 5.6 (or about 33.6 times ten to the 23rd power.
Bromine is an element, and no other kinds of atoms or elements are present with it, in a pure sample.
Carbon-13 make up 1.1% of carbon atoms. .011 x 19000 carbon atoms = 209 carbon-13 atoms present.
The answer is 6,31 moles Ag.
200
They are identical.
Ni(OH)2 1 atom of nickel 2 atoms of oxygen 2 atoms of hydrogen -------------------------------+ total atoms = 5 atoms
He
A 88,1 gram sample of Ag contain 4,9185.10e23 atoms.