I Need Help With These.
Answers
1) Since you have to find the final volume you have to solve the equation above for V₂ to get V₂=P₁V₁/P₂
P₁=1atm
V₁=2.00L
P₂=6x10^4atm
when you plug everything in you should get 3.33x10^-5 L
2) You are again trying to find V₂ so use the equation V₂=P₁V₁/P₂
P₁=1.2atm
V₁=15000L
P₂=250atm
when you plug everything in you should get 72L
3) we are trying to find the final volume so use the equation V₂=V₁T₂/T₁
V₁=2.2L
T₁=14.2°C (convert this into 287.2K since most gas law equations require the use of kelvin)
T₂=38.98°C (tern this to 311.98K for the same reason as above)
when you plug everything in you should get 2.39L
I hope this helps. Let me know in the comments if anything if anything is unclear.
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The percent by mass of carbon in HC2H3O2 is equal to__.
Alexis predicts that the size of a magnet affects its magnetic properties. She designs anexperiment using magnets of different sizes and paperclips to test her prediction. She takesthree magnets of different sizes (one small, one medium, and one large) and holds them overa container of paperclips to see how many are attracted. Her results are shown in the tablebelow.What should Alexis do next after examining her experimental results?
A series of five short lines. The first has an up and a down arrow, and is labeled below 1 s. The second has an up and a down arrow, and is labeled 2 s. The third has an up arrow and no label. The fourth has an up arrow and is labeled 2 p. The fifth has an up arrow and no label. Which element is this?
What characteristic is common to animals, plants, protists, and fungi?
Answers
450 mL / 1000 = 0.45 L
1 mole ------- 126.751 g
? mole ------- 200 g
moles = 200 * 1 / 126.751
moles = 200 / 126.751
= 1.57789 moles FeCl₂
M = n / V
M = 1.57789 / 0.45
= 3.50 Mol/L or M
hope this helps!
Answers
There are several methods that can be used for the reduction of 9-fluorenone. One of the most common methods is the use of sodium borohydride (NaBH4) as a reducing agent.
The reaction mechanism for this method is as follows:
Step 1: The NaBH4 molecule donates a hydride ion (H-) to the carbonyl group of 9-fluorenone, forming an alkoxide intermediate.
Step 2: The alkoxide intermediate is then protonated by a proton source (such as water or an acid) to form the corresponding alcohol.
The overall reaction can be represented as:
9-fluorenone + NaBH4 + H2O → 9-fluorenol + Na+ + BH3OH-
Another method that can be used for the reduction of 9-fluorenone is the use of lithium aluminum hydride (LiAlH4) as a reducing agent. The reaction mechanism for this method is similar to that of the NaBH4 reduction, with the LiAlH4 molecule donating a hydride ion to the carbonyl group of 9-fluorenone and the resulting alkoxide intermediate being protonated to form the corresponding alcohol. The overall reaction can be represented as:
9-fluorenone + LiAlH4 + H2O → 9-fluorenol + Li+ + AlH3OH-
Both of these methods are effective for the reduction of 9-fluorenone, and the choice of which method to use will depend on the specific conditions and requirements of the reaction.
More on reduction reactions can be found here: brainly.com/question/27939413
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(2) –2 (4) +17
Answers
The charge of the nucleus in an atom of oxygen is +8. The correct option is 3.
What are the charges on the elements?
The charge is negative or positive or neutral charges present on the substance or molecule. The charges are produced by the gaining or losing of electrons.
The charges tell the tendency of the atom or molecule of gaining or losing of the atom.
Thus, the correct option is 3, +8.
Learn more about charges
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the oxygen has 8 protons and 8 neutrons in your nucleus
hope this helps!
B. Small lenses cause more distortion in images than big lenses.
C. Small telescopes gather more radiation from space than big telescopes.
D. Small telescopes produce clearer images of distant objects than big telescopes.
* PLEASE ONLY ANSWER THIS QUESTION IF YOU KNOW YOUR ANSWER IS 100% CORRECT * Thank you! :)
-Also- I have heard there is "no right answer" to this question from others, but I still need to answer it, (preferably correctly!)
Answers
Answer:A
Explanation:Test
A. motion of particles.
B. density of particles.
C. randomness of particles.
D. kinetic energy of particles.
Answers
Answer: is C
Explanation:
Final answer:
The most appropriate label for the y-axis in a graph comparing states of substances would be related to changes that occur in different states of matter, such as kinetic energy or motion. The label 'density of particles' would not be appropriate, as it doesn't significantly vary between states.
Explanation:
The appropriate label for the y-axis on a graph that compares three states of a substance might typically be something directly related to those states, such as kinetic energy of particles, motion of particles, or randomness of particles. These labels reflect changes that occur in different states of matter. When substances change state, there are changes in the arrangement and motion of the particles.
By contrast, density of particles would not be an appropriate label. Density, in this sense, is not a property that varies significantly between different states of a substance. The density of a substance in its solid, liquid, or gaseous state does not refer to the density of the individual particles themselves, but to the density of the substance as a whole (mass/volume).
Learn more about Graph Labeling here:
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b. False
Answers
Answer:The given statement is true.
Explanation:
Isomers are defined as two or more compounds with same structural formula but different arrangement of atom and chemical properties.
For example: Butane, 2-methyl propane are isomers with structural formula , acetone and propanal both isomers to each other with same structural formula of
.