Multiple Choice
What is the molar mass of sodium sulfate (Na2SO4)?
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2. Atoms & Elements
Calculating Molar Mass
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the molar mass of NaOH?
A
56.11 g/mol
B
18.02 g/mol
C
40.00 g/mol
D
22.99 g/mol
Verified step by step guidance1
Identify the elements present in the compound NaOH: sodium (Na), oxygen (O), and hydrogen (H).
Find the atomic masses of each element from the periodic table: sodium (Na) ≈ 22.99 g/mol, oxygen (O) ≈ 16.00 g/mol, and hydrogen (H) ≈ 1.01 g/mol.
Add the atomic masses of all atoms in the formula to find the molar mass: \(\text{Molar mass of NaOH} = 22.99 + 16.00 + 1.01\) g/mol.
Sum these values to get the total molar mass of NaOH.
Use this molar mass to compare with the given options and select the correct one.
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