Question

В 200 г воды растворили 40 г сахара. Найдите массовую долю сахара в растворе

Answer 1

Дано
m(воды)=200 г
m(с)=40г
Найти
W(с)
m(р-ра)=m(c)+m(воды)=40+200=240 г
W(с)=m(с)/m(р-ра) *100%=40/240. *100%=17%

Answer 2

200:40=5/1 отношение массы воды к массе сахара

Answer 3

To find the mass fraction of sugar in the solution, we'll use the formula:

Mass Fraction (w/w) = (mass of solute / total mass of solution) × 100

Given that 200 g of water is used to dissolve 40 g of sugar:

Mass of solute (sugar) = 40 g Total mass of solution = 200 g (water) + 40 g (sugar) = 240 g

Now, we can calculate the mass fraction:

Mass Fraction (w/w) = (40 g / 240 g) × 100 ≈ 16.67%

The mass fraction of sugar in the solution is approximately 16.67%.