GCSE Science - Chemistry Question 5 of 20 What is the M_(r) of an ammonia molecule (NH_(3)) ? Round your answer to the nearest whole number. Enter your answer as a number I

To calculate the molar mass represented as of a molecule, we need to know the atomic masses of the elements in the molecule and the quantity of these atoms in the molecule. In the ammonia molecule , there is one nitrogen atom and three hydrogen atoms. For nitrogen, the average atomic mass is approximately 14 g/mol. Hydrogen has an atomic mass of approximately 1 g/mol. To find the molar mass, we use the following equation: g/mol to the nearest whole number. Thus, the of an ammonia ( ) molecule is 17 g/mol to the nearest whole number.