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What is the molarity of a solution with 58.9 g of glucose (molar mass: 180.16 g/mol) dissolved in water to a total volume of 450.0 mL

Sagot :

drpelezo

Answer:

Molarity of solution = 0.727M

Explanation:

Molarity of solution is defined as moles solute per Liter of solution. For the posted problem use M = n/V where n = moles of solute and V = Liters of solution. That is ...

n = 58.9g/180.16g·mole⁻¹ = 0.327 mole (3 sig. figs.)

V = 450.0ml/1000ml·L⁻¹ = 0.450L (3 sig. figs.)

∴ Molarity = n/V = 0.327mole/0.450L = 0.727mol/L = 0.727M

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