How many molecules are present in 2 moles of water (H2O)?
Correct Answer: 1.2044 x 10^24 molecules
- Step 1: Understand that 1 mole of any substance contains a specific number of molecules, known as Avogadro's number.
- Step 2: Know that Avogadro's number is approximately 6.022 x 10^23 molecules per mole.
- Step 3: Identify that you have 2 moles of water (H2O).
- Step 4: Use the formula: Number of molecules = moles x Avogadro's number.
- Step 5: Substitute the values into the formula: Number of molecules = 2 moles x 6.022 x 10^23 molecules/mole.
- Step 6: Calculate the result: 2 x 6.022 = 12.044, so you have 12.044 x 10^23 molecules.
- Step 7: Write the final answer in scientific notation: 1.2044 x 10^24 molecules.
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