What is the molarity of a solution containing 0.45 moles of NaCl in 4 liters?

Question

What is the molarity of a solution containing 0.45 moles of NaCl in 4 liters??  
A. 0.11 M NaCl  
B. 0.45 M NaCl  
C. 1.8 M NaCl  
D. 8.9 M NaCl

Accepted Answer

Correct Answer: (A)0.11 M NaCl. 
Rationale: The molarity of the solution is 0.11 M NaCl.Molarity is a measure of concentration defined as the number of moles of solute dissolved per liter of solution. It tells us how much substance is present in a given volume. The formula used isM = moles of solute ÷ liters of solution.In this case, the solution contains 0.45 moles of NaCl dissolved in 4 liters of solution. Dividing the moles by the volume gives:0.45 ÷ 4 = 0.1125 M, which rounds to approximately 0.11 M.A. 0.11 M NaClThis is correct. The calculated molarity of 0.1125 M rounds to 0.11 M, matching this option.B. 0.45 M NaClA molarity of 0.45 M would occur only if 0.45 moles of NaCl were dissolved in 1 liter, not 4 liters.C. 1.8 M NaClThis value results from incorrectly dividing the volume by the moles instead of dividing moles by volume.D. 8.9 M NaClThis value is far too large and does not correspond to any correct calculation using the given data.ConclusionUsing the molarity formula and the given values, the concentration of the NaCl solution is approximately 0.11 moles per liter.

What is the molarity of a solution containing 0.45 moles of NaCl in 4 liters?

A
0.11 M NaCl

B
0.45 M NaCl

C
1.8 M NaCl

D
8.9 M NaCl

The molarity of the solution is 0.11 M NaCl.

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What is the molarity of a solution containing 0.45 moles of NaCl in 4 liters?

A 0.11 M NaCl B 0.45 M NaCl C 1.8 M NaCl D 8.9 M NaCl

The molarity of the solution is 0.11 M NaCl.

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Related Questions

A
0.11 M NaCl

B
0.45 M NaCl

C
1.8 M NaCl

D
8.9 M NaCl