Salt with a mass of 10 g was dissolved in water weighing 140 g. What is the mass fraction of salt in the solution?
| June 29, 2021 | education
To find the mass fraction of a substance in a solution, use the formula:
W (in-va) = m (in-va) / m (solution) • 100%.
Find the mass of the solution:
m (solution) = m (in-va) + m (water) = 10 + 140 = 150 g.
The percentage of salt in the solution:
W (salt) = 10/150 • 100% = 6.67%.
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.
