First work out the moles
So do 36g / 80 (80 is bromine's relative Atomic Mass number)
You have 0.45 M
Then, do 0.45 * 6.02*10^23
You get 2.7*10^23, which is your answer
One atom. The atom is the smallest unit of measure. Be is made up of protons, neutrons, and electrons based on the atomic number.
36.0 grams Be (1 mole Be/9.012 grams)(6.022 X 10^23/1 mole Be)
= 2.41 X 10^24 atoms of beryllium in that mass
Be, beryllium, has an atomic weight of 9g/mol. With that we can convert given grams to moles.
36g x 1mol/9g = 4 moles of Be
36 g of beryllium is equivalent to 4 moles.
36 g of beryllium is the equivalent to 4 moles.
Approx. 4 moles.
the theoretical yield is 162 grams
2,774 moles
This mass is 3.10e-23 g.
The number of atoms of lead is 6,68.10e23.
360 g H2O x 1 mol/18g H2O x 6.02x10^23 H2O molecules/mol x 2 H atoms/molecule = 2.4x10^25 hydrogen atoms.
0.24 g
atoms in 12 g of c-12
This mass is 3.10e-23 g.
1 mole of the element has 6.023 x 1023 atoms 1 mole = 4 g of helium = 7 g of lithium = 9 g of beryllium = 11 g of boron = 12 g of carbon = 14 g of nitrogen = 16 g of oxygen
The formula is: number of moles = g Be/9,012.
BeCl2 One atom of beryllium and two atoms of chloride. = 79.912 grams/mole
The number of atoms of lead is 6,68.10e23.
The density of beryllium is 1,85 g/cm3.
The atomic mass is the same as the atomic weight therefore it is 9.01218. Beryllium is a non metal element. Atomic mass of it is 9.01. The atomic mass number, which is distinct from the atomic mass and the atomic weight, is 9.
The number of atoms of lead is 6,68.10e23.
Beryllium density: 1,848 g/cm3 Bismuth density: 9,78 g/cm3
360 g H2O x 1 mol/18g H2O x 6.02x10^23 H2O molecules/mol x 2 H atoms/molecule = 2.4x10^25 hydrogen atoms.
The number of atoms is 28,099.10e23.
dose 23 grams of sodium and 238 grams of uranium have equal number of atoms in them