1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
3 years ago
6

How would you make 2.5 liters of an aqueous solution containing 150mM Tris (the MW of Tris is 120g/mole)? (Hint: Do the necessar

y
calculations AND then describe how the solution would be made.)
Biology
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

45 g of the solid Tris will be dissolved in 2.5 liters of water.

Explanation:

Recall that:

<em>Number of moles  = molarity x volume</em>

Hence, number of moles of Tris present in 2.5 liters, 150 mM solution:

= 150/1000 x 2.5 = 0.375 moles

Also, recall that:

<em>No of moles of substance = mass/molar mass.</em>

Hence, mass of 0.375 moles substance:

= no of moles of the substance x molar mass of the substance.

= 0.375 x 120 = 45 g.

Therefore, in order to prepare 2.5 liters, 150 mM of an aqueous solution of Tris, 45 g of the solid Tris will be dissolved in 2.5 liters of water.

You might be interested in
Why do you think this is important for aquatic animals that live in very cold places?
Elenna [48]

Answer: here´s why

Explanation: Underneath the frozen upper layer, the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds. If water is heated, its volume gradually decreases.

6 0
2 years ago
In the process of photosynthesis, plants use carbon dioxide (CO2), water (H2O), and light energy to produce a sugar (C6H12O6) an
gregori [183]

The question is incomplete, the complete question is;

In the process of photosynthesis, plants use carbon dioxide (CO2), water (H2O), and light energy to produce a sugar (C6H12O6) and oxygen (O2). In the process of aerobic cellular respiration, animals and plants release energy from sugar and oxygen and produce carbon dioxide and water. The chemical equations that describe these reactions look like this:

photosynthesis: 6CO2 + 6H2O + light ---> C6H12O6 + 6O2

cellular respiration: C6H12O6 + 6O2 ----> 6CO2 + 6H2O + 36 ATP

How do these equations explain why the total amount of O2 and CO2 remains the same?

Answer:

See explanation

Explanation:

If we look at photosynthesis and cellular respiration, we will realize that the both are complementary processes. The product of one process is the input material for the other process.

Respiration and cellular respiration helps to balance the amount of O2 and CO2 in nature because photosynthesis takes in CO2 and releases oxygen while cellular respiration takes in oxygen and releases CO2. This maintains the delicate balance between the both gases in nature.

5 0
3 years ago
Together, sewage treatment and drinking water treatment are used to _____.
Svet_ta [14]
The answer is c because if you treat the sewage water than you that means that the water will be clean so it prevents diseases
6 0
3 years ago
Read 2 more answers
Farmer Tom only breeds the largest hogs, the fastest horses, and the cows 1 point
Marta_Voda [28]

Answer:

Artificial Selection

Explanation:

8 0
3 years ago
Read 2 more answers
Animals in phylum Arthropoda generally have these characteristics in common.
umka21 [38]

Answer:

Chitinous exoskeleton and segmented bodies​.

Explanation:

Phylum Arthropoda are known as jointed legs species which include crabs, spiders, ants, etc. The important characteristic of Arthropoda is they have a hard chitinous exoskeleton that provides them protection and gives flexibility. These phylum species can survive in both terrestrial and marine habitats. Some characteristics of phylum Arthropoda are given below:

1) They have Chitinous exoskeleton which is hardened.

2) Their digestive tract is present at opposite ends of the body and complete with the mouth and anus.

3) They contain jointed limbs.

4) The body structure of these species is showing bilateral symmetry.

5 0
3 years ago
Other questions:
  • If George is startled by a loud noise immediately after his baby sister cries, he is likely to become fearful every time she cri
    9·2 answers
  • Which of the following is not considered a fossil fuel?
    15·1 answer
  • How does oxygen move from the respiratory system to the circulatory system?
    13·2 answers
  • A number should be rounded up if
    11·1 answer
  • Select all the correct answers.
    15·2 answers
  • How did the black codes make African Americans' lives similar to that before the Civil War?
    9·2 answers
  • Help Science!
    6·2 answers
  • What makes up an<br> organism's environment?
    8·2 answers
  • Is it true or false that plants and animals are made of cells
    15·2 answers
  • How do genetic mutations lead to variation in a<br> population?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!