Final answer:
To determine the number of moles and number of ions of each type in a given solution containing 8.73×10^23 formula units of potassium bromide per liter, we first calculate the concentration of the solution (molarity) and then determine the number of moles and ions of each type.
Step-by-step explanation:
To determine the number of moles and number of ions of each type in a given solution, we need to calculate the concentration of the solution and the number of formula units in the solution.
First, calculate the concentration of the solution, or molarity (M). Molarity is defined as moles of solute per liter of solution. In this case, we are given 8.73×10^23 formula units of potassium bromide per liter, so the concentration of the solution (molarity) is 8.73×10^23 M.
Next, we need to determine the number of moles and number of ions of each type. Since potassium bromide (KBr) dissociates into one potassium ion (K+) and one bromide ion (Br-), the number of moles and number of ions of each type is the same. Therefore, the solution contains 8.73×10^23 moles of potassium ions and 8.73×10^23 moles of bromide ions. The number of ions of each type is also 8.73×10^23 ions of potassium and 8.73×10^23 ions of bromide.