The formula units of NaNO3 that are in 2.99 moles of NaNO3 is
1.80 x 10^24 formula units
calculation
Use the Avogadro's constant to calculate the formula units
that is, 1 mole = 6.02 x10^23 formula units
2.99 moles =? formula units
by cross multiplication
= (2.99 moles x 6.02 x10^23 formula units) / 1 mole = 1.80 x 10^24 formula units
The concept we are looking for here is electronegativity. This concept is a measure of how strong an atom or element can attract a pair, that is bonding, of electrons to itself.
Fluorine is the element or atom of the greatest electronegativity. Electronegativity would increase as we move left to right of the periodic table.
If it’s not katrina, it’s bob. katrina’s is right because gravity is keeping the bird on the perch, but the perch is also holding the bird off of the ground.
by putting to much current through it ?
First let's find how much 30Si in nature: 100%-92.2%-4.67%=3.13%
Average M = M(28Si) * 0.922 + M(29Si) * 0.0467 + M(30Si) * 0.0313;
Let's substitute all the values we know:
28.09 = 27.98*0.922 + 28.98*0.0467 +x * 0.0313;
x = 30.03 g/mol