How many neutrons are in a potassium atom that has an atomic mass of 41

Hey there!

Potassium has 19 protons.

If this potassium atom has an atomic mass of 41, that means the sum of protons and neutrons is 41.

So, the following must be true:

p + n = 41

p = 19

Which makes this true:

19 + n = 41

Subtract 19 from each side to solve for n, the number of neutrons.

19 - 19 + n = 41 - 19

n = 22

A potassium atom that has an atomic mass of 41 has 22 neutrons.

Hope this helps!

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l