Question

1 чайна ложка вміщує приблизно 10 г цукру. Ольга кладе в чай 2 чайні ложки цукру, а Василь – 1. Обчисліть масові частки цукру в чаях, якщо маса води в обох випадках становить 250 г. Вкажіть масу чаю Василя.

Answer 1

Ответ:
260 г )
тест я завалила но хоть тебе помогу

Объяснение:

Answer 2

To calculate the mass fractions of sugar in the teas, we need to determine the total mass of sugar in each tea and the total mass of the tea itself. Given that 1 teaspoon of sugar holds approximately 10 grams, Olga adds 2 teaspoons of sugar to her tea, while Vasily adds 1 teaspoon. The mass of water in both cases is 250 grams. Let's calculate the mass fractions of sugar in the teas and determine the mass of Vasily's tea.

Calculation:

1. Total mass of sugar in Olga's tea: - Olga adds 2 teaspoons of sugar, which is equal to 2 * 10 grams = 20 grams.

2. Total mass of sugar in Vasily's tea: - Vasily adds 1 teaspoon of sugar, which is equal to 1 * 10 grams = 10 grams.

3. Mass fraction of sugar in Olga's tea: - To calculate the mass fraction, we divide the mass of sugar by the total mass of the tea. - Mass fraction of sugar in Olga's tea = (mass of sugar / total mass of tea) * 100%. - Mass fraction of sugar in Olga's tea = (20 grams / 250 grams) * 100% = 8%.

4. Mass fraction of sugar in Vasily's tea: - Mass fraction of sugar in Vasily's tea = (mass of sugar / total mass of tea) * 100%. - Mass fraction of sugar in Vasily's tea = (10 grams / 250 grams) * 100% = 4%.

5. Mass of Vasily's tea: - The mass of Vasily's tea is equal to the total mass of the tea, which is given as 250 grams.

Answer:

The mass fraction of sugar in Olga's tea is approximately 8%, while the mass fraction of sugar in Vasily's tea is approximately 4%. The mass of Vasily's tea is 250 grams.