Question: What is the molar mass of sulfuric acid (H2SO4)?
Options:
98 g/mol
96 g/mol
100 g/mol
92 g/mol
Correct Answer: 98 g/mol
Solution:
Molar mass = 2*1 + 32 + 4*16 = 98 g/mol.
What is the molar mass of sulfuric acid (H2SO4)?
Practice Questions
Q1
What is the molar mass of sulfuric acid (H2SO4)?
98 g/mol
96 g/mol
100 g/mol
92 g/mol
Questions & Step-by-Step Solutions
What is the molar mass of sulfuric acid (H2SO4)?
Correct Answer: 98 g/mol
Step 1: Identify the elements in sulfuric acid (H2SO4). They are hydrogen (H), sulfur (S), and oxygen (O).
Step 2: Count the number of each type of atom in the formula: There are 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.
Step 3: Find the atomic mass of each element: Hydrogen (H) has an atomic mass of about 1 g/mol, sulfur (S) has an atomic mass of about 32 g/mol, and oxygen (O) has an atomic mass of about 16 g/mol.
Step 4: Calculate the total mass contributed by each element: For hydrogen, it's 2 * 1 = 2 g/mol; for sulfur, it's 1 * 32 = 32 g/mol; for oxygen, it's 4 * 16 = 64 g/mol.
