Answer: 0.4578 g
Step-by-step explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute
= volume of solution in ml = 25.0 ml


Thus 0.4578 g of nickel(II) nitrate is to be dissolved in 25.0 mL of 0.100 M
solution.