C. the nucleus loses a neutron
190 g of water
60 g of KI
Explanation:
For concentration expressed in mass percentage of the solution we have the following formula:
concentration / 100 = mass of the dissolved / mass of the solution
mass of the dissolved KI = (concentration × mass of the solution) / 100
mass of the dissolved KI = (24 × 250) / 100 = 60 g
mass of the solution = mass of the water + mass of the dissolved KI
mass of the water = mass of the solution - mass of the dissolved KI
mass of the water = 250 - 60 = 190 g
Learn more about:
mass percent concentration
brainly.com/question/7291819
#learnwithBrainly
3,000 operational satellites currently orbiting earth
