What mass of potassium chlorate is needed to produce 8.50 mol of oxygen? 2KCIO3 →
2KCl +302
Answers
Answer:
694.2915 grams of potassium chlorate is needed to produce 8.50 mol of oxygen
Explanation:
It is possible to apply the following rule of three: if by stoichiometry 3 moles of O₂ are produced by 2 moles of KCIO₃, when reacting 8.5 moles of O₂, how many moles of KClO₃ are necessary?
\(moles of KClO_{3} =\frac{8.5moles of O_{2}*2moles of KClO_{3} }{3moles of O_{2}}\)
moles of KClO₃= 5.67
To know the amount of mass present in 5.67 moles of the compound, it is necessary to know the molar mass, that is, the amount of mass that a substance contains in one mole. Being:
K: 39 g/moleCl: 35.45 g/moleO: 16 g/moleThe molar mass of the compound is:
KClO₃= 39 g/mole + 35.45 g/mole + 3* (16 g/mole)= 122.45 g/mole
Then you can apply the following rule of three: if in 1 mole of the compound there are 122.45 grams, in 5.67 moles how much mass is there?
\(mass=\frac{5.67 moles*122.45 grams}{1 mole}\)
mass= 694.2915 grams
694.2915 grams of potassium chlorate is needed to produce 8.50 mol of oxygen
Related Questions
Is this statement true or false?
The word planet comes from the Greek word planetai, which means wanderer because the ancient Greeks thought of the planets as wandering through the stars.
True
False
btw this is a science question
Answers
I’m at k12 student
Answer: True
Explanation:
Asteres planetoid, or 'wandering stars,' was the term used by Greek astronomers to describe star-like objects that appeared to move across the sky.
The term has been applied to a wide range of objects, including the moon, satellites, the sun, and asteroids.
A planet, according to the International Astronomical Union (IAU), is a body that orbits the Sun, is massive enough for its own gravity to keep it around, and has 'cleared its neighborhood' of smaller objects approaching its orbit.
pls help
Ionic and covalent bonds help arrange atoms into unique structures for proteins like hemoglobin. Why is this necessary?(1 point)
Answers
Answer:
Ionic bonds can be important to protein structure because they are potent electrostatic attractions. In the hydrophobic interior of proteins, ionic bonds can even approach the strength of covalent bonds
Covalent bonds in amino acids are useful to stabilize the structure of the proteins and their interactions. The ionic bond formed as the atoms in amino acids with opposite charges accompanied strong electrostatic attractions.
What types of bonds are involved in protein structure?Proteins are 3D structures of amino acids that are further made of an amine and a carboxyl group, and are arranged in specific structures in four levels to give rise to the complete protein molecule.
Proteins can be described as the polymers of polypeptides which are structured by arrangements of these chains in a three-dimensional structure. They are folded and are driven by special non-covalent interactions such as peptide bonds, ionic bonds, hydrogen bonds, Van der Waals interaction, and disulfide bridges.
The primary structure is the sequence of amino acids through peptide bonds to form a polypeptide chain. The secondary structure is a sub-structures made by hydrogen bonding between the main chain peptide groups on the polypeptide backbone chain.
Tertiary structure is the 3D arrangement of protein in which α and β helices are folded into a globular structure with the interactions such as hydrogen bonds, salt bridges, disulfide bonds, and tight packing of side chains.
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(1.) If at 100.0 mL solution contains 0.850 moles of a solute, what is the molarity ?
(2.) If the molarity of a solution is 12 M and the volume of the solution is 1.0 L, how many moles of solute does the solution contain ?
Answers
Answer:
See below
Explanation:
1) Moles / volume
.85 mole / .1 liter = 8.5 M
2) 12 moles are contained in one liter
.85 mole / .1 liter = 8.5 M
2) 12 moles are contained in one liter
some living organisms can be _________ while some are _________?
Answers
Answer:
1. animals
2. plants
Explanation:
Part A: ____ objects are more dense
Part B: ____ Objects are less dense
Answers
Answer:
Part A: Solid objects with a greater mass per unit of volume are more dense.
Part B: Objects with a lower mass per unit of volume are less dense.
Explanation:
Not sure if this answers your question!
Answer:
A: solids
B: gases
Explanation:
Not sure if this is the answer you are looking for, but if it is hope it helps.
no problems
i suck in science so pls help
thx
Answers
Answer:
Sometimes it is not an increase in force that is desired, but an increase in
distance or speed. Take a baseball bat as an example. A bat is a class 3
lever, meaning the effort is in the middle. This means that it has a
mechanical advantage of less than one. However, when the bat is swung,
the end of the bat is travelling at a much higher speed than the location at
which the batter is holding it. This allows the ball to leave the bat at a
much higher speed than it would with a class one or two lever.
Explanation:
Which element is represented by this model?
Be; Beryllium
N; Nitrogen
C; Carbon
F: Fluorine
Answers
Answer: C; Carbon
Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.
Answer:
Carbon
Ok it needs more characters
Please answer the questions. I REALLY NEED HELPPPPPPPPP. LIKE RIGHT NOW.
Answers
I’ll give brainliest If answered correctly
Losing heat to the environment can be a good or a bad thing. For example, on a hot day, you would want to lose some of the heat from your body after playing outside. This is an example of when losing heat would be beneficial to you. However, on a cold day, you would not want to leave the door or window open and lose heat from inside your house.
-Answer this question-
What are some ways to prevent heat energy "loss" in matter?
What are some real-life examples of when you want to keep heat energy from being lost to the environment?
Answers
The best way to prevent heat loss is thermal insulation. Insulation means creating a barrier between the hot and the cold object that reduces heat transfer by either reflecting thermal radiation or decreasing thermal conduction and convection from one object to the other.
Water bottles (thermoses) have two layers with vacuum between them in order to prevent heat loss through conduction and radiations. Similarly, windows are double glazed in order to provide insulation. These windows have dry, trapped air between two panes of glass to prevent heat loss through conduction and convection.
Answer this please.
Answers
Answer:
Photoperiodism
Explanation:
E
Answer: sun lite
Explanation:
How is Earth's surface most likely To
change in a place that has extensive tree growth?
A. Top soil will be carried away by wind and water.
B. cracks in rocks will deepen as the roots grow.
C. Big furrows will form due to increase in rainfall.
D. wear away due to abrasion by vegetation.
Answers
Answer:
A. Cracks in rocks will deepen as the roots grow.
The right answer would be Cracks in rocks will deepen as the roots grow.
Cole and his family decide to remove all of the plant material from the ground after the gardening season is over. How could this decision affect the nitrogen cycle and the soil?
Please help, if you can
Answers
Answer: Show explain
Explanation:
SORRY
Answer:
Explanation:
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
why did the skater go fast at point B
Answers
Explanation: causing it to go faster at point B
The skater went down the hill which increased his speeed and it caused him to go fast at point b.
Explanation:
hope this helps.
Lots of pts! Beeg brain if correct! No links!
list of materials: Safety pins, Salt, Plastic beads, and raw pasta noodles.
Write the observable properties of the mixture listed and how to separate it.
Answers
Answer:
Explanation:
the raw noodles are thin and long, and the pins are sharp. The beads are round, and the salt is grainy. To seperate them, take out the safety pins with a magnet, then the noodles, then the beads. Leave the salt. Then BOOM. They are seperated.
Sorry ejejejjeejjejejejeje
Explain the correlation between chemical properties and chemical changes. (plz i not sure on the answer so it would mean a lot if you could help me.)
Answers
Answer:
Explanation:
A chemical property describes the ability of a substance to undergo a specific chemical change.
A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances.
Differences
Chemical properties are properties that can be observed or measured when a substance undergoes a chemical change.
Physical properties are properties that can be observed without bringing a chemical change.
Another one
chemical properties; can be used to predict how substances react.
chemical changes; It is mostly used in identifying or describing the substance.
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
hope this helps!
Consider the following rock samples. Both samples are made of the same minerals.
One sample is an igneous rock and the other is a metamorphic rock. Which one is which? What evidence from the samples supports your argument?
Answers
Answer: I believe sample A is metamorphic and sample B is Igneous but i could be wrong
Which cell component functions like the digestive system converting food to energy in the human body?
Golgi apparatus
plasma membrane
endoplasmic reticulum
mitochondria
Answers
Inside the cell there are various kinds of cell component like Golgi apparatus, plasma membrane, endoplasmic reticulum, mitochondria. Therefore the mitochondria is the cell component functions like the digestive system converting food to energy in the human body. The correct option is option D
What is cell?Cell is the basic unit of life. It is the smallest unit of any organ. different cell component have different role in the working of cell
According to our question
The role of Golgi apparatus is to deliver vesicles
The role of plasma membrane is to make ways for the transfer of material from inside to outside of the cell or vice versa
The role of endoplasmic reticulum is to synthesize the ribosomes
The role of mitochondria is to convert food to energy in the human body
Therefore the mitochondria is the cell component functions like the digestive system converting food to energy in the human body. Thus the correct option is option B
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Which of the following points is/are true for plasma?
(1) It is a very good conductor of electricity.
(2) Gas is transformed into plasma state.
(3) It is influenced by magnetic and electric fields.
(4) All of the choices
Answers
Answer:
4 all of the choices. the rest of the answers are correct so it's all of the choices
How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.
Answers
Answer:
i need more information give me more pictures
Explanation:
lol
Answer:
the data will support my theory if the results are right for my hypothisis
Explanation:
piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap
Answers
Answer: Food
Explanation:
The rat smells the food or sees the food it goes towards the food to eat it.
During digestion, what happens in the stomach?
A. All food molecules are broken down into smaller molecules by chemical reactions.
B. Some types of food molecules are broken down into smaller molecules by chemical reactions.
C. Water in the food passes into the blood and travels to other organs where it is used.
D. Food passes into the blood and travels to other organs where it is used in various reactions.
Answers
Answer:
A
Explanation:
Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.
Answer:
A
Explanation:
Human obtain electricity through fossil fuel, nuclear, solar, geothermal, wind, biomass, and hydroelectric power.
For at least two of these, explain ways that using this resource could pollute freshwater.
Answers
For fossil fuel: Oil spills and leaks during extraction or transport can pollute water sources.
For nuclear power: An uncontrolled nuclear reaction can result in widespread a contamination of water.
An oval shape, which may be elongated or nearly circular; the shape of the planet’s orbits.
Answers
Answer:
The statement that you typed is mostly correct
Explanation:
Students were asked to place a mint in their mouths and determine how long it took for the mint to dissolve. The condition of the mint varied in each student group. One group of students were asked to leave a whole mint in their mouth, not moving it around, and let it dissolve. Another group swirled a mint, while the other groups used mints broken into smaller pieces. See the chart for all of the manipulated variable.
Answers
Answer:
The time is likely between 40-80 seconds.
Explanation:
youre welcome
Answer:
The time is likely between 40-80 seconds.
Explanation:
By swirling the mint, this is agitating and creating a higher frequency of collisions between the saliva particles and mint particles, increasing the rate of dissolution. Therefore, the time is likely to be less than the mint cut in half but probably more than the mint when it is in small pieces.
Match the following.
Drag the appropriate labels to their respective targets.
Answers
Answer:
oxygen - O2
chlorine- Cl2
neon- Ne
calcium- Ca
iodine- I
hydrogen- H2
Ne₂(g) - Neon gas (Ne)
I(s) - Iodine solid (I₂)
Ch(g) - Chlorine gas (Cl₂)
Ca(s) - Calcium solid (Ca)
O(g) - Oxygen gas (O₂)
H2(g) - Hydrogen gas (H₂)
Cl(s) - Chlorine solid (Cl₂)
O2(g) - Oxygen gas (O₂)
1. Ne₂(g) - This label represents the chemical formula for neon gas, which is Ne. Neon is a noble gas that is commonly used in neon signs due to its bright orange-red glow when an electric current is passed through it.
2. I(s) - This label represents the element iodine in its solid state. Iodine is a nonmetallic element that exists as a purple-black solid at room temperature.
3. Ch(g) - This label represents a gas called chlorine, which is chemically represented as Cl₂. Chlorine is a halogen gas that is used as a disinfectant and in the production of various chemicals.
4. Ca(s) - This label represents the element calcium in its solid state. Calcium is an alkaline earth metal that is commonly found in rocks, shells, and bones. It is essential for the proper functioning of our bodies and is also used in construction materials.
5. O(g) - This label represents oxygen gas, which is chemically represented as O₂. Oxygen is a colorless and odorless gas that is essential for respiration and the combustion of fuels.
6. H2(g) - This label represents hydrogen gas, which is chemically represented as H₂. Hydrogen is the lightest and most abundant element in the universe. It is used in various industries, such as the production of ammonia and petroleum refining.
8. Cl(s) - This label represents the element chlorine in its solid state. As mentioned earlier, chlorine is a halogen gas, so the correct label for chlorine in its solid state should be Cl₂(s).
9. O2(g) - This label represents oxygen gas, which is chemically represented as O₂. As mentioned earlier, oxygen is a colorless and odorless gas that is essential for respiration and the combustion of fuels.
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Write a summary of what you have learned about how incoming forces and outgoing forces are related (newton's cradle)
Answers
The relationship between incoming and outgoing forces in Newton's Cradle can be understood through the following concepts:
Conservation of Momentum: In a closed system with no external forces, the total momentum before a collision is equal to the total momentum after the collision. In Newton's Cradle, the momentum of the incoming ball is transferred through the stationary balls and eventually to the last ball, which swings outward with a momentum equal to the initial ball's momentum.
Conservation of Energy: Similarly, the total mechanical energy (kinetic and potential) in a closed system remains constant. In the context of Newton's Cradle, the kinetic energy of the incoming ball is transferred through the stationary balls, and eventually to the last ball, which swings outward with kinetic energy equal to that of the incoming ball. Potential energy is also involved as the balls swing and momentarily come to rest at their highest points.
Elastic Collisions: Newton's Cradle demonstrates nearly perfect elastic collisions, wherein both momentum and kinetic energy are conserved. In reality, some energy is lost to heat and sound, making the collisions slightly inelastic. However, the demonstration is still a useful approximation for understanding the transfer of forces.
Force Transfer: The incoming force exerted by the first ball is transmitted through the intervening balls to the last ball without causing any significant movement of the middle balls. This occurs because the balls are very close together and the time taken for the force to be transferred is minimal, allowing the middle balls to remain nearly stationary.
In summary, Newton's Cradle demonstrates the relationship between incoming and outgoing forces through the principles of conservation of momentum and energy, elastic collisions, and force transfer. The device provides a clear visual representation of these fundamental concepts in physics.
You may think of changes in climate occurring as you go north or south. This climber stayed at the same latitude and went up. What explains the difference in temperature and climate between the top and bottom of Mt. Kilimanjaro? Please explain in 3-5 sentences thank you for 81 points
Answers
Answer: I'm not really sure but I think its dew to the different heights and tempura going up and down and the flow of wind.
Explanation:
Answer:
Mountains make it possible for snow to be found at the equator. Why does the temperature become colder the higher up a Mountain? Generally the climate on mountains get progressively colder with increased altitude (the higher up you go).
Explanation:
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
True or false? Tornadoes can form when the air in a strong thunderstorm or a supercell begins to rotate.
Answers
Answer:
true
Explanation:
tornadoes can dogs when they are in the air which then form strong thunderstorms
Answer:
it's true ..
Explanation:
they r caused by weather conditions