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
katovenus [111]
2 years ago
5

1.

Chemistry
1 answer:
Leya [2.2K]2 years ago
6 0

Answer:

V₂ = 530.5 mL

Explanation:

Given data:

Initial temperature = 20.0°C

Final temperature = 40.0 °C

Final volume = 585 mL

Initial volume = ?

Solution:

Initial temperature = 20.0°C (20+273 = 293 K)

Final temperature = 40.0 °C (40+273 = 323 K)

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₁ = V₂T₁ /T₂  

V₂ = 585 mL × 293 K / 323 K

V₂ = 171405 mL.K / 323 K

V₂ = 530.5 mL

You might be interested in
Identify the species that is oxidized and the species that is reduced in this reaction. Also, identify the oxidizing agent and t
natulia [17]

Answer:

Given the equation of the reaction below:

3Cl₂(g) + 2Al(s) → 6Cl⁻(aq) + 2Al³⁺(aq)

The oxidized species is aluminum, Al, as its oxidation number increases from zero to +3. Al therefore, acts as the reducing agent.

Also, the reduced species is chlorine gas, Cl₂, as its oxidation number decreases from zero to -1. Therefore, Cl, is the reducing agent.

Note: the question is incomplete. a related question is given as follows; Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction. 3Cl2 + 2Al → 6Cl - + 2Al3+ species oxidized:

Explanation:

An oxidation is a process in which there is a loss of electrons whereas  reduction is a process involving the gain of electrons. A redox reaction is a reaction in which oxidation and reduction processes occur concurrently and to the same extent.

In a redox reaction reaction, the substance which is oxidized serves as the reducing agent by donating electrons to the substance which is reduced. On the other hand, the substance which is reduced serves as the oxidizing agent by accepting the electrons donated by the substance which is oxidized. In oxidation, the oxidation number of the substance oxidized increases, whereas in reduction, the oxidation number of the substance decreases.

For example, given the equation of the reaction below:

3Cl₂(g) + 2Al(s) → 6Cl⁻(aq) + 2Al³⁺(aq)

The oxidized species is aluminum, Al, as its oxidation number increases from zero to +3. Al therefore, acts as the reducing agent.

Also, the reduced species is chlorine gas, Cl₂, as its oxidation number decreases from zero to -1. Therefore, Cl, is the reducing agent.

6 0
2 years ago
How many calories are there in 32 Calories?<br> a.64,000<br> b.16,000<br> C.32,000<br> D..032
Vedmedyk [2.9K]

Answer:

32

Explanation:

There cannot be more in a number than the number. Therefore, the answer has to be D, or 32.

Hope this helps! :)

3 0
3 years ago
List the 10 foods that strengthen your immune system and what they have in them that helps you.
Temka [501]

Answer: this was on a website dont copy word  for word plz

1 – Garlic

10 Foods That Boost Your Immune System New Braunfels, TXGarlic is now a well-known immune-boosting food and is included in many over-the-counter supplements and health products.

2 – Vitamin C

Vitamin C is not a food on its own, but there are a number of beneficial foods for your immune system that include high levels of vitamin C. Everyone knows that oranges and other citrus fruits contain vitamin C, but foods like green and red bell peppers, broccoli, kale and spinach are also high in this important vitamin that supplies antioxidants to strengthen your immune system.

3 – Blueberries

All types of berries are good for you, but blueberries go a step further with a flavonoid called anthocyanin. Its antioxidant properties have the ability to boost your immune system, and a study from 2016 found that flavonoids play an important role in the immune defense system of your upper respiratory tract.

4 – Healthy Oils

Heart-healthy oils are important for optimum health, and can give your immune system a boost at the same time. Some of the most beneficial oils are olive oil, coconut oil, and fatty fish like sardines and herring.

5 – Echinacea

Drinking a tea made with the flowering herb Echinacea may help improve your immune system response. You can also get it as a tincture or in a range of different supplements.

6 – Green Tea

Green tea is a good source of antioxidants and contains the amino acid theanine, which is beneficial for fighting off illnesses. Green tea has been a staple in different Asian cultures for centuries, and is now quite popular in North America.

7 – Leafy Green Vegetables10 Foods That Boost Your Immune System Boerne, TX

Leafy green vegetables like spinach, watercress, and collard greens have a range of different health benefits that can improve your body’s ability to fight off viruses.

When possible, eat leafy greens raw in their natural state to get the most health benefit.

8 – Turmeric

Turmeric contains a healthful compound called curcumin that has been shown to have antioxidant and anti-inflammatory features, which contribute to immune function in the body. It is a rich yellow color and it is often used in different types of cooking, but is being used more and more in North America for medicinal purposes.

9 – Kefir

Kefir is a fermented drink that is sold in many mainstream stores and is often used for its immune-boosting capabilities. It contains live cultures of bacteria that can reduce inflammation, increase antioxidant activity, and fight bacteria.

10 – Ginger

Ginger has a strong taste, and anti-inflammatory properties to go along with it. Its ability to calm an upset stomach is well known and it can also have a positive effect on your immune system.

Explanation:

this wasa  aon a website dont copy word  for word plz

3 0
2 years ago
A small sack of sand has a density of 1.5 g/cm3 and a mass of 1500 g. How much space (volume) does the sand occupy?
d1i1m1o1n [39]
The answer would be 1000 cm3
8 0
3 years ago
Read 2 more answers
20.00 g of aluminum (al) reacts with 78.78 grams of molecular chlorine (cl2) all of each reactant is completely consumed and a s
marysya [2.9K]

The mass of the product is <em>98.78 g.</em>

The word equation is

aluminum + chlorine → product

20.00 g + 98.78 g → <em>x</em> g

If each reactant is completely consumed, the <em>Law of conservation of Mass </em>tells us the mass of the product must be 98.78 g.

8 0
3 years ago
Other questions:
  • What is the volume of a 4.0 M solution of KCl that contains 8.0 moles of solute?
    12·1 answer
  • What is one difference between a cell wall and a cell membrane
    15·2 answers
  • Why does a cell phone have more mass than a feather?
    10·1 answer
  • What was thompson working with when he discovered the cathode rays
    8·2 answers
  • The following system is at equilibrium:
    14·1 answer
  • What new information can you add to your definition of chemical change
    6·1 answer
  • If there was an airplane that went 2,000 miles in 3.5 hours. Find the average speed
    14·1 answer
  • What are the types of radiation emitted by the nuclei of radioactive elements?
    7·1 answer
  • If you start with 30.0 grams of sodium fluoride, how many grams of magnesium fluoride will be produced?
    15·1 answer
  • A compound has the name iodine pentafluoride. What kind of bond is present between the atoms? A. O Metallic B Covalent C. Hydrog
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!