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26. Mass of sugar = 100 g

27. a).m/m % = 8.67 %

     b).m/m% = 20%

28.a). Mass of sugar = 12.5 g

     b).Mass of sugar = 12.5 g

     c).Mass of sugar = 30 g

Explanation:

26. Use formula:

m/m = 20%

mass of solution = 500 g

mass of Solute = mass of sugar = ?

insert in the formula,

mass of solute = 100 g

27. a)

mass of Barium hydroxide(solute) = 13 g

mass of solution = 150 g

m/m % = 8.67 %

b).

mass of Glucose (solute) = 50 g

mass of solution = 250 g

m/m% = 20%

28. a)

m/m% = 5

mass of solution = 250 g

mass of solute = ?

mass of sugar = 12.5 g

b).

m/m% = 2.5%

mass of solution = 500 g

mass of solute = ?

mass of sugar = 12.5 g

c).

m/m% = 3 %

mass of solution = 1 kg = 1000 g

mass of solute = ?

Mass of sugar = 30 g

If you break a bone, your body immediately begins producing new cells to heal the damage. When your skin is cut, platelets in your blood clot to stop the bleeding, white blood cells remove the dead, injured cells and new healthy cells repair the damaged tissue.

Explanation: