Answer :
Final answer:
To make a 7.8% aqueous solution, dissolve 64.1g of glucose in water to make a total solution of 69.1g, hence the correct option is a) Dissolve 64.1g of glucose in water to make a total solution of 69.1g.
Explanation:
The percentage concentration is calculated by dividing the mass of the solute by the total mass of the solution and multiplying by 100.
In this case, to achieve a 7.8% aqueous solution of glucose using 5.0g of glucose, the total mass of the solution would be 5.0g divided by (7.8/100), which is approximately 64.1g.
Therefore, the correct option is to dissolve 64.1g of glucose in water to make a total solution of 69.1g, resulting in a 7.8% aqueous solution of glucose.
