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If 10 grams of NaCl are dissolved in water, how many moles of NaCl are present?
If 10 grams of NaCl are dissolved in water, how many moles of NaCl are present? (Molar mass of NaCl = 58.5 g/mol)
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Practice Questions
1 question
Q1
If 10 grams of NaCl are dissolved in water, how many moles of NaCl are present? (Molar mass of NaCl = 58.5 g/mol)
0.17 moles
0.5 moles
1.0 moles
1.5 moles
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Moles of NaCl = mass (g) / molar mass (g/mol) = 10 g / 58.5 g/mol = 0.171 moles.
Questions & Step-by-step Solutions
1 item
Q
Q: If 10 grams of NaCl are dissolved in water, how many moles of NaCl are present? (Molar mass of NaCl = 58.5 g/mol)
Solution:
Moles of NaCl = mass (g) / molar mass (g/mol) = 10 g / 58.5 g/mol = 0.171 moles.
Steps: 6
Show Steps
Step 1: Identify the mass of NaCl you have, which is 10 grams.
Step 2: Identify the molar mass of NaCl, which is 58.5 grams per mole.
Step 3: Use the formula to calculate moles: Moles = mass (g) / molar mass (g/mol).
Step 4: Plug in the values: Moles = 10 g / 58.5 g/mol.
Step 5: Perform the division: 10 divided by 58.5 equals approximately 0.171.
Step 6: Conclude that there are about 0.171 moles of NaCl present.
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