Question bank: Concentration Units: Molality

Access these and thousands of other questions, create assignments, projects, and lesson plans in minutes.

Question 1:

Hard

In a dairy factory, the production of bulk ice cream involves the use of a complex system of solutions, where the addition of sucrose (C12H22O11) is essential to provide the characteristic sweetness of the product, as well as to prevent the frozen water in the ice cream from excessively crystallizing, affecting its texture. For a batch of 1000 kg of ice cream, an aqueous sucrose solution with a molal concentration of 1.50 mol·kg⁻¹ was prepared. Considering that sucrose is a non-ionic solute and that the density of the water used in the preparation of the solution is 1.00 g·cm⁻³, calculate the amount of moles of sucrose present in the batch of ice cream.

Concentration Units: Molality

Contextualized Question

Question 2:

Easy

How can molality be used to determine the concentration of a solution?

Concentration Units: Molality

Question 3:

Medium

Concentration Units: Molality

Question 4:

Medium

A laboratory has developed a hydrochloric acid (HCl) solution to be used in educational experiments. The solution was prepared by dissolving 5 moles of HCl in 2 kg of water. From this information: a) Calculate the molality of the hydrochloric acid solution. b) If 2 liters of this solution are diluted in 8 liters of water, what will be the new molality of the solution? c) Considering the new solution from item b, determine the amount in moles of HCl present in 1 liter of this solution.

Concentration Units: Molality

Question 5:

Medium

An aqueous solution of sucrose, commonly known as table sugar, is prepared by dissolving 68 g of sucrose (C12H22O11) in 100 g of water. Given that the molar mass of sucrose is 342 g/mol and the cryoscopic constant of water is 1.86 °C kg/mol, calculate the molality of the solution. Consider that sucrose does not undergo ionization in solution.

Concentration Units: Molality

Contextualized Question

Calculus Question

IARA TIP

Create lists and assessments from these and other 50 questions of Concentration Units: Molality

Didn't find what you were looking for? Try searching in a different way!

Grade

Select a grade

Subject

Select a subject

Why are Teachy's Question Banks the most complete available?

Complete platform:

With over 200,000 new questions from reputable sources, the question bank provides a wide range of resources to enhance your teaching materials.

Custom filters:

You can find specific questions based on subject and grade level, across various difficulty types, within hundreds of educational themes. This way, you can create personalized lists in just a few minutes.

Focus on students:

With Teachy's Question Bank, you ensure the success of your classes. We offer high-quality materials, carefully selected and aligned with the National Common Curricular Base, essential for any educational product.

Time for what matters:

The platform's easy access allows teachers to save time when planning their lessons. The materials can be accessed in just a few clicks, making pedagogical preparation straightforward and efficient.

Access anywhere:

Teachy provides the flexibility to access the question bank from anywhere, at any time. With this accessibility, teachers have more freedom to manage their time and resources, making their work more efficient.

See other related topics on Concentration Units: Molality

Didn't find what you were looking for?

Get full access to dozens of subjects and hundreds of materials on Teachy!