Login

Question about Pure Substances and Mixtures

Chemistry

Originais Teachy

Pure Substances and Mixtures

Medium

(Originais Teachy 2023) - Question Medium of Chemistry

During a laboratory class, a group of students received the task of investigating a non-homogeneous mixture composed of water, oil, and sand. Considering the presented system, they must differentiate and count the phases existing in the mixture. a) Briefly describe the characteristics of each component of the mixture and its interaction with the other components in the system. b) How many different phases can be observed in this mixture? c) What would be the most suitable phase separation techniques to isolate each component of this mixture?

Answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.
Emoji eyes

Answer

You must have a teacher account to see the answer

Emoji eyes
Iara Tip

IARA TIP

Are you preparing an exam or test?

With Teachy, it's possible to generate these materials automatically, without spending hours searching for questions ūüėČ

Those who search for this subject, also viewed these questions...
Question icon

Question

Difficulty Medium

Source:

Is external icon

Teachy

You found a glass at your brother's house that contained mixtures of sand, water, and oil from an old experiment. After discovering that they are harmless chemical components, you want to examine the mixture to understand the phases it presents. (a) Identify and describe each component seen after separating the mixture by letting the glass stand for some time. (b) How many phases are there in the mixture? (c) Explain why the phases form and do not mix.

Pure Substances and Mixtures

Question icon

Question

Difficulty Medium

Source:

Is external icon

Teachy

In an experiment, sugar was added to a glass containing water. After the addition, the sugar completely dissolved in the water, forming a homogeneous solution. In this case, what is the phase of the mixture formed?

Pure Substances and Mixtures

Question icon

Question

Difficulty Medium

Source:

Is external icon

UNESP

Solutions and Mixtures

Question icon

Question

Difficulty Hard

Source:

Is external icon

Teachy

A scientist is conducting an experiment using a calorimeter to determine the specific heat capacity of a certain metal. The metal piece, initially at a temperature of 100¬įC, is dropped into a calorimeter containing 200g of water initially at 25¬įC. The final equilibrium temperature of the system is observed to be 27¬įC. Given that the specific heat capacity of water is 4.18 J/g¬įC and ignoring heat losses to the surroundings, what is the mass of the metal piece? Use the principle of conservation of energy and the formula for heat transfer Q=mcőĒT, where m is mass, c is specific heat capacity, and őĒT is the change in temperature.

Heat Capacity and Calorimetry

Teachy logo

We reinvent the lives of teachers with artificial intelligence

Instagram LogoLinkedIn LogoTwitter LogoYoutube Logo
BR flagUS flagES flagMX flagPE flagAR flagCO flag
CL flagIN flagID flagPH flagVN flagNG flagFR flag

2023 - All rights reserved