mol of a solute is dissolved to make L of solution. What is the molarity (in mol/L)?
Answer and explanation
Correct answer: B. 1
- Step 1: Recall the definition of molar concentration: , expressing moles of dissolved solute per volume in liters.
- Step 2: Plug in and to get .
- Step 3: Simplifying the ratio gives .
Answer
1.
Why not the others: 4 multiplies moles by volume (); 2 is the number of moles () alone; 0 subtracts moles and volume ().
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