Question

Массовая доля соли в растворе полученном при растворении 45 г соли в 255 г воды ___%

Answer 1

Ответ 106,43!!!!!!!!!

Answer 2

Mass Fraction of Salt in the Solution

The mass fraction of salt in the solution obtained by dissolving 45 g of salt in 255 g of water can be calculated using the formula:

Mass Fraction = (Mass of Salt / Total Mass of Solution) x 100%

Substituting the given values: Mass Fraction = (45 g / (45 g + 255 g)) x 100%

Calculating the total mass of the solution: Total Mass of Solution = 45 g (salt) + 255 g (water) = 300 g

Substituting the total mass into the formula: Mass Fraction = (45 g / 300 g) x 100%

Calculating the mass fraction: Mass Fraction = (0.15) x 100% = 15%

Therefore, the mass fraction of salt in the solution obtained by dissolving 45 g of salt in 255 g of water is 15%.

Additional Information

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