Show the process of computation to obtain a correct answer. Indicate the Given, Formula and solution on each problem. the

1. What is the percent by mass concentration of a solution that contains 6.48 g of sugar dissolved in 20.8 g of water?

2. How many grams of salt are needed to prepare 340 mL of a 6% salt solution?

3. What is the percent by volume of a solution formed by mixing 30 mL alcohol with 90 mL water?

4. A medicine solution contains 260 mL of pure honey in 1200 mL of lemon juice. What is the v/v concentration of the solution?​