If 100 g of glucose (C6H12O6) is dissolved in 1 L of solution, what is the molar

Practice Questions

Q1
If 100 g of glucose (C6H12O6) is dissolved in 1 L of solution, what is the molarity of the solution? (Molar mass of glucose = 180 g/mol)
  1. 0.56 M
  2. 1.0 M
  3. 0.33 M
  4. 0.75 M

Questions & Step-by-Step Solutions

If 100 g of glucose (C6H12O6) is dissolved in 1 L of solution, what is the molarity of the solution? (Molar mass of glucose = 180 g/mol)
  • Step 1: Identify the mass of glucose you have, which is 100 grams.
  • Step 2: Find the molar mass of glucose, which is given as 180 grams per mole.
  • Step 3: Calculate the number of moles of glucose using the formula: moles = mass (g) / molar mass (g/mol). So, moles of glucose = 100 g / 180 g/mol.
  • Step 4: Perform the calculation: 100 divided by 180 equals approximately 0.556 moles.
  • Step 5: Identify the volume of the solution, which is 1 liter.
  • Step 6: Calculate the molarity using the formula: molarity = moles of solute / liters of solution. So, molarity = 0.556 moles / 1 L.
  • Step 7: Perform the calculation: 0.556 divided by 1 equals 0.556 M.
  • Step 8: Round the answer to two decimal places, which gives you 0.56 M.
  • Molarity Calculation – Molarity is calculated by dividing the number of moles of solute by the volume of solution in liters.
  • Moles and Molar Mass – Understanding how to convert grams of a substance to moles using its molar mass.
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