13. an aqueous solution of antifreeze is 40.0% ethylene glycol (c2h5o2) by mass. the density of the
solution is 1.05 g/cm? calculate the molarity, and mole fraction of the ethylene glycol solution.

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

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