Two parents are trying to determine their offspring phenotype The fathers genotype is (RR) and the Mothers genotype is also (Rr). The allele (R) is dominant and the phenotype is “Brown hair”. The allele (r) is recessive and the phenotype is “ Red hair”. Fill out the punnett square. What is the probability of their child having brown hair.

the answer is 75.0%.

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

the answer is 0.42 is that is an option. this question provides no info