How much sugar will dissolve in 1000 g of water at 80°c?

If we look at the sugar-water phase diagram;

at 80° C : 26% of water will dissolve 74% of sugar

C = m / (m + 1000 g) · 100

74 = m / (m + 1000 g) · 100

0.74 = m / (m + 1000 g)

m = 0.74 · (m + 1000 g)

m = 0.74 m + 740 g

m - 0.74 m = 740 g

0.26 m = 740 g

m = 740 g : 0.26

m = 2,846.15 g ≈ 2,846 g

Answer:

m (sugar) = 2,846 g.