The formula weight of calcium nitrate (Ca(NO₃)₂),rounded to one decimal place,is ________ amu. A)102.1 B)164.0 C)204.2 D)150.1 E)116.1

Question

Quizplus · Accepted Answer

The formula weight of calcium nitrate (Ca(NO3)2) is calculated by adding the atomic weights of each element in the compound. The atomic weight of calcium (Ca) is 40.08, nitrogen (N) is 14.01, and oxygen (O) is 16.00. Therefore, the formula weight of calcium nitrate is:40.08 + 2(14.01) + 6(16.00) = 164.09Rounding this value to one decimal place gives 164.0, which is choice B.

The Formula Weight of Calcium Nitrate (Ca(NO3)2),rounded to One Decimal

The Formula Weight of Calcium Nitrate (Ca(NO₃)₂),rounded to One Decimal