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What is the concentration in mol/L of a solution made by dissolving 58.5 grams o

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Question: What is the concentration in mol/L of a solution made by dissolving 58.5 grams of NaCl in 1 liter of water? (Molar mass of NaCl = 58.5 g/mol) (2023) 2023

Options:

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

Correct Answer: 1 M

Exam Year: 2023

Solution: 

Moles of NaCl = 58.5 g / 58.5 g/mol = 1 mole. Molarity = 1 mole / 1 L = 1 M.

What is the concentration in mol/L of a solution made by dissolving 58.5 grams o

Practice Questions

Q1
What is the concentration in mol/L of a solution made by dissolving 58.5 grams of NaCl in 1 liter of water? (Molar mass of NaCl = 58.5 g/mol) (2023) 2023
  1. 1 M
  2. 0.5 M
  3. 2 M
  4. 0.25 M

Questions & Step-by-Step Solutions

What is the concentration in mol/L of a solution made by dissolving 58.5 grams of NaCl in 1 liter of water? (Molar mass of NaCl = 58.5 g/mol) (2023) 2023
  • Step 1: Identify the mass of NaCl you have, which is 58.5 grams.
  • Step 2: Find the molar mass of NaCl, which is given as 58.5 g/mol.
  • Step 3: Calculate the number of moles of NaCl using the formula: Moles = Mass (g) / Molar Mass (g/mol). So, Moles = 58.5 g / 58.5 g/mol.
  • Step 4: Perform the calculation: 58.5 g / 58.5 g/mol = 1 mole of NaCl.
  • Step 5: Determine the volume of the solution, which is 1 liter of water.
  • Step 6: Calculate the molarity (concentration) using the formula: Molarity (M) = Moles of solute / Volume of solution (L). So, Molarity = 1 mole / 1 L.
  • Step 7: Perform the calculation: 1 mole / 1 L = 1 M.
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