How many nitrate ions are in 24.4 grams of Ca(NO₃)₂?

Question

Quizplus · Accepted Answer

First, we need to correct the formula for calcium nitrate, which is Ca(NO3)2. The molar mass of Ca(NO3)2 is approximately 164.1 g/mol. The number of moles of Ca(NO3)2 in 24.4 grams is calculated by dividing the mass by the molar mass, which gives approximately 0.149 moles. Since each mole of Ca(NO3)2 contains 2 moles of nitrate ions, there are 0.298 moles of nitrate ions in 24.4 grams of Ca(NO3)2. Avogadro's number (6.022 × 10^23) is used to convert moles of nitrate ions to the number of ions, resulting in approximately 1.79 × 10^23 nitrate ions.

How Many Nitrate Ions Are in 24