You need to prepare 250. mL of a 0.600 M aqueous solution of sucrose, C_12H_220_

Question

You need to prepare 250. mL of a 0.600 M aqueous solution of sucrose, C_12H_220_11(aq), which is used frequently in biological experiments. which type of glassware should you use to make this solution (assuming that the accuracy of the concentration is important)? A B C How should the correct amount of solute be obtained? Measure out x mol of solid sucrose on a molemeter Measure out x cm of sucrose with a ruler. Measure out x g of solid sucrose on a balance. Now that you have selected the correct unit above, what is the value of x? x = ______ How should the solute and solvent be mixed in the container? Fill the container with water to the 250-mL mark, then add the solute. Mix a small amount of water with the solute to dissolve it, then fill with water to the 250-mL mark. Add the solute, then fill the container to the 250-mL mark with water.

Explanation / Answer

Question 1

The type of glassware should be used to make 0.6M sucrose solution is standard flask, which is shown in C.

Question 2

Correct amount of solute as 'x' g of sucrose on a balance.

Question 3

x = Molarity * Molecular weight * Volume (in L)

   = 0.6 * 342.297 * (25/1000)

   = 5.134455 g

Question 4

Add the solute, then fill the container to the 250-mL withwater.

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