What is the molar mass of NaBr?
Understand the Problem
The question is asking for the calculation of the molar mass of sodium bromide (NaBr). This entails adding the atomic masses of sodium (Na) and bromine (Br) together to find the total molar mass of the compound.
Answer
The molar mass of sodium bromide (NaBr) is $102.89 \, \text{g/mol}$.
Answer for screen readers
The molar mass of sodium bromide (NaBr) is $102.89 , \text{g/mol}$.
Steps to Solve
- Identify atomic masses To find the molar mass of sodium bromide (NaBr), we need to find the atomic masses of sodium (Na) and bromine (Br).
- The atomic mass of sodium (Na) is approximately 22.99 g/mol.
- The atomic mass of bromine (Br) is approximately 79.90 g/mol.
- Add the atomic masses Next, we add the atomic masses of sodium and bromine together to find the total molar mass of NaBr.
$$ \text{Molar mass of NaBr} = \text{Atomic mass of Na} + \text{Atomic mass of Br} $$
Substituting the values:
$$ \text{Molar mass of NaBr} = 22.99 , \text{g/mol} + 79.90 , \text{g/mol} $$
- Calculate the total Now, we will perform the addition.
$$ \text{Molar mass of NaBr} = 22.99 + 79.90 = 102.89 , \text{g/mol} $$
The molar mass of sodium bromide (NaBr) is $102.89 , \text{g/mol}$.
More Information
The molar mass helps in converting between grams and moles, which is essential in chemical calculations. Sodium bromide is often used in organic chemistry and as a source of bromine.
Tips
- Forgetting to include the units when calculating or presenting the answer. Always remember to state the unit as g/mol.
- Using incorrect atomic masses. Ensure to check a reliable periodic table for accurate values.
