g-l mol-l

2025-11-05 阅读 2 评论 0

摘要：To convert between grams per liter (g/L) and moles per liter (mol/L), follow these steps:
1. Unders

To convert between grams per liter (g/L) and moles per liter (mol/L), follow these steps:

g-l mol-l

1. Understand the Units:

g/L: Mass concentration (grams of solute per liter of solution).

mol/L (Molarity): Molar concentration (moles of solute per liter of solution).

2. Use Molar Mass:

Molar mass (M) is required to convert between grams and moles. It is specific to the substance and has units of g/mol.

3. Conversion Formulas:

From g/L to mol/L:

[

ext{Molarity (mol/L)} = frac{

ext{Concentration (g/L)}}{

ext{Molar Mass (g/mol)}}

]

From mol/L to g/L:

[

ext{Concentration (g/L)} =

ext{Molarity (mol/L)}

imes

ext{Molar Mass (g/mol)}

]

4. Example Calculations:

Example 1: Convert 58.44 g/L NaCl to mol/L.

Molar mass of NaCl = 58.44 g/mol.

[

ext{Molarity} = frac{58.44,

ext{g/L}}{58.44,

ext{g/mol}} = 1,

ext{mol/L (1 M)}

]

Example 2: Convert 0.5 M glucose (C₆H₁₂O₆) to g/L.

Molar mass of glucose = 180.16 g/mol.

[

ext{Concentration} = 0.5,

ext{mol/L}

imes 180.16,

ext{g/mol} = 90.08,

ext{g/L}

]

5. Key Considerations:

Ensure units are consistent (e.g., molar mass in g/mol, concentration in g/L).

Account for hydrates or impurities if present (adjust molar mass accordingly).

The volume (liter) cancels out in the conversion, so formulas work for any solution volume.

Summary:

[

boxed{

begin{aligned}

ext{mol/L} &= frac{

ext{g/L}}{

ext{g/mol}}

ext{g/L} &=

ext{mol/L}

imes

ext{g/mol}

end{aligned}

]

原文链接：https://www.6g9.cn/qwsh/dd604AD5XVFdVAg.html

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