My Learning Cart
?
Categories
Account

What is the number of moles in 100 grams of NaOH?

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: What is the number of moles in 100 grams of NaOH?

Options:

  1. 1
  2. 2
  3. 0.5
  4. 0.25

Correct Answer: 1

Solution: 

Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol. Number of moles = mass/molar mass = 100 g / 40 g/mol = 2.5 moles.

What is the number of moles in 100 grams of NaOH?

Practice Questions

Q1
What is the number of moles in 100 grams of NaOH?
  1. 1
  2. 2
  3. 0.5
  4. 0.25

Questions & Step-by-Step Solutions

What is the number of moles in 100 grams of NaOH?
  • Step 1: Find the molar mass of NaOH. This is done by adding the atomic masses of sodium (Na), oxygen (O), and hydrogen (H).
  • Step 2: The atomic mass of sodium (Na) is approximately 23 g/mol.
  • Step 3: The atomic mass of oxygen (O) is approximately 16 g/mol.
  • Step 4: The atomic mass of hydrogen (H) is approximately 1 g/mol.
  • Step 5: Add these values together: 23 g/mol (Na) + 16 g/mol (O) + 1 g/mol (H) = 40 g/mol.
  • Step 6: Now, use the formula to find the number of moles: Number of moles = mass / molar mass.
  • Step 7: Substitute the values into the formula: Number of moles = 100 g / 40 g/mol.
  • Step 8: Calculate the result: 100 g divided by 40 g/mol equals 2.5 moles.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks