To 150 g of a 20% sugar solution, 30 g of sugar was added. Find the mass fraction of the substance in the resulting solution.

univerkov | December 5, 2020 | education

m (sugar) 1 = m (solution) * w (sugar) = 150g * 0.2 = 30g
m (sugar) 2 = 30g + 30g = 60g
m (solution) 2 = 150g + 30g = 180g
w (sugar) 2 = 60g: 180g * 100% = 33.3%
Answer: 33.3%

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.