A sample of carbon-12 has a mass of 6.00 g. How
many atoms of carbon-12 are in the sample?
3.01 x 1023
6.02 x 1023
1.20 x 1024
How many moles of carbon are in the sample?
0.500
1.00
o 6.00
12.0

am i too late?

explanation:

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

diaria maybe go see a doctor about that