Error in the markings of one or more of the containers could be the result of different volume readings for each container.
What are measurement errors?
All experimental research is built on measurement. Without steadily improving levels of measuring precision, none of the major technological advancements would have been feasible. Based on some internationally recognized standards that, when compared to other standards, are totally correct, amounts are measured.
Measurements are taken by comparing an unknown amount with a known weight, just like your local vegetable vendors. Every measurement contains a certain amount of inaccuracy, also known as uncertainty. This error could occur throughout the procedure or as a result of an experimentation blunder. Therefore, no measurement technique can be 100% accurate.
The discrepancy between the measured and actual values might be used to define an error. For instance, if both operators are using the same measurement tool. It's not required for two operators to produce results that are similar. An ERROR is used to describe the measurement discrepancy.
You need to be familiar with the two phrases that characterize the mistake in order to comprehend the idea of measurement errors. True value and measurable value are what they are. It is impossible to determine the real value of experimentation. It may be described as the average value of all possible measured values, which is limitless. To be as exact as possible, the measured value is a single measurement of the item.
Therefore, errors in the markings of one or more of the containers could be the result of different volume readings for each container.
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How do sounds change?
click volume button Explanation:
Which change in this process would shift the equilibrium to produce the
maximum possible NH3?
3H2 + N2 2 2NH3 + energy
A. Removing the N2 as it forms
B. Removing the NH3 as it forms
c. Decreasing the pressure
D. Increasing the temperature
Answer: B I think, I'll put my reasoning below.
Explanation:
It's not A because removing N2 would only shift the equation the opposite way.
It's not C and D because I don't think those affect the specific amount of each reactant/product produced. I think temperature only affects the speed at which the reaction is performed, which won't affect anything in this case.
Removing the ammonia as it forms is the correct answer to produce the maximum possible NH₃.
What is Haber's Process ?It is an industrial process for manufacturing ammonia by reaction of nitrogen with hydrogen.
N₂+3H₂ ⇌ 2NH₃
The reaction is reversible and exothermic
To answer this question we will consider all the options and answer
Option D ) Increasing Temperature
Haber's process requires an optimal temperature of 450°C ,on Increasing temperature the yield of ammonia gets slow down.
Option C) Decreasing Pressure
Haber's Process requires high pressure to drive the reaction , higher the pressure more is the yield.
Option A ) Removing the N₂ as it forms , on removing N₂ the reaction will drive on the reverse side hence low yield of NH₃ .
Option B) Removing the NH₃ as it forms , this can actually increase the yield as removing the ammonia will lead to shift the equilibrium and therefore increasing the yield.
Therefore Option B , Removing the ammonia (NH₃) as it forms is the correct answer to produce the maximum possible NH₃.
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Choose the options below that are true of a solution of a solid in a liquid. (select all that apply) Select all that apply: Most solids in solution exhibit a general trend of increasing solubility with increasing temperature. A seed crystal may be added to a supersaturated solution to precipitate excess solute. Most solids in solution will dissolve less with increasing temperature. A solution can be saturated at an elevated temperature and subsequently cooled to a lower temperature without precipitating the solute.
Answer:
Most solids in solution exhibit a general trend of increasing solubility with increasing temperature.
A seed crystal may be added to a supersaturated solution to precipitate excess solute.
Explanation:
For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions(Lumen Learning).
When a seed crystal is added to a supersaturated solution, excess solute begin to precipitate because the seed crystal now furnishes the required nucleation site where the excess dissolved crystals now begin to grow.
The data table shows the rate of the decomposition reaction of hydrogen
peroxide, H202. Which statement explains how the rate of the reaction
changes over time?
Answer:
b. the reaction slows down over time as the reactants get used up
Explanation:
just took the test, i hope this helps!!
make sure to take care of yourself :]
The statement " the reaction shows down over time as the reactant get used up." explains how the rate of reaction changes over time.
What is rate of reaction?The rate of reaction is defined as the ratio of the increase in product concentration per unit time to the decrease in reactant concentration per unit time. The rate of reaction varies greatly.
What is rate?The rate of a particular chemical reaction is calculated by dividing the rate of change in a reactant's or product's concentration by the coefficient from the given balanced equation.
What is reaction?Reactions are defined as the change of a chemical substance into an innovative substance through the formation and breaking of bonds among distinct atoms.
It can be seen that with the concentration, the rate of decomposition is also decreased. Generally, it is found that as per hour concentration and rate of decomposition decreases as well.
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A student burns 1.50 mol C3H8 according to the following reaction:
C3H8 + 5O2 3CO2 + 4H2O.
How many grams of carbon dioxide are produced?
a. 1.98 × 10² g
b. 1.32 × 10² g
c. 4.40 × 10¹ g
d. 6.61 × 10¹ g
Answer:
I think the answer is A. 1.98 x 10^2 g
Approximately how far will a p-wave travel in 4 minutes?
Answer:
2000 (km)
Explanation:
:)
A molecule which contains two atoms of the same or different
elements can be referred to as a ---- molecule.
Answer:
my network was gone so I cant
Answer:
Diatomic. molecule
hope it helps
and yr day will be full of happiness
PHMWMHW(14 points):))));)))))
Answer:
a silly
Explanation:
6 H2(g) + P4(5) → 4 PH:(9)
17 Solid phosphorus reacts with hydrogen gas to form phosphine gas (PH) as shown above What is
the theoretical yield of PH2 that can be formed when 400 g Ha reacts with 6.20 g P.?
A. 89.8 g PHS
B. 44 9 g PH
C 27 2 g PHA
D. 681 g PHI
a cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell ?
Answer:
it would dry up
Explanation:
Which best explains how rotation affects the colors we see in the sky at dawn and dusk?
A.As dawn and dusk, the light from the Sun is fading and phases through all the colors of a prism in a cycle.
B.At dawn and dusk the rotation of Earth slows down so the light from the increased sunlight creates colors.
C.At dawn and dusk, sunlight is closer to Earth’s curved surface, refracting in the atmosphere, creating colors.
D.At dawn and dusk, Earth has rotated closer to the Sun, so the heat creates the colors in the sky.
10 point
10 point
I think that the answer is C.)
It makes the most sense because one or two of the other options talk about the sun getting closer to the earth which makes no sense. Also, the Earth's spinning speed does not slow down so that rules out option B. Lastly, the answer cannot be A whereas the sun's light does not fade, rather the Earth spins with a shadow casting over its back due to no sunlight on that facing side.
Hope this helps and have a nice day.
-R3TR0 Z3R0
Answer:
it's c
Explanation:
i took test
12. In rocket fuel (as in many of the balloons we blow up in class), hydrogen gas (H2) reacts with oxygen gas (O2) to form water vapor. a) Write a balanced reaction for the process. b) Suppose you have a mini rocket and access to 2.50 L of oxygen gas and 4.00 L of hydrogen gas. If you use up all of the gas possible blasting off your rocket, how many liters of water vapor did you produce (at the same temperature as the original mixture)
Answer: a) [tex]2H_2(g)+O_2(g)\rightarrow 2H_2O(g)[/tex]
b) 4.00 L of [tex]H_2O[/tex] will be produced
Explanation:
a) The balanced chemical reaction is:
[tex]2H_2(g)+O_2(g)\rightarrow 2H_2O(g)[/tex]
b) According to avogadros law, equal moles of gases occupy equal volumes at same temperature and presure conditions.
According to stoichiometry :
2 L of [tex]H_2[/tex] require = 1 L of [tex]O_2[/tex]
Thus 4.00 L of [tex]H_2[/tex] will require=[tex]\frac{1}{2}\times 4.00=2.00L[/tex] of [tex]O_2[/tex]
Thus [tex]H_2[/tex] is the limiting reagent as it limits the formation of product and [tex]O_2[/tex] is the excess reagent.
As 2 L of [tex]H_2[/tex] give = 2 L of [tex]H_2O[/tex]
Thus 4.00 L of [tex]H_2[/tex] give =[tex]\frac{2}{2}\times 4.00=4.00L[/tex] of [tex]H_2O[/tex]
Thus 4.00 L of [tex]H_2O[/tex] will be produced
a. The balanced reaction for the process should be 2h_2(g) + O_2(g) ⇒2H_2O(g)
b. The number of liters of water vapor should be 4.00 liters of H_2O.
Avogadro's law:a. The balanced reaction for the process should be 2h_2(g) + O_2(g) ⇒2H_2O(g)
b. As per the law, the equal moles of gases occupied equal volumes at the similar temperature
So, the number of liters should be
= 2/2*4.00
= 4.00 of H_2O
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When vinegar and baking soda are combined, a mixture is produced, and
a gas is released. Which statement is true?
Answer:
When vinegar and baking soda are combined a mixture is produced which is carbon dioxide. A gas is released.
Explanation:
It takes______ dekaliters to make 100 L.
A.1000
B.1
C.10
D.0.1
Answer:
c
Explanation:
I have no clue how to even start this, any help is appreciated!
A sample of 2.54 moles of iron (III) oxide is reacted with 4.56 moles of carbon monoxide to produce iron metal and carbon dioxide. Using the balanced equation below, predict which is the limiting reactant and the maximum amount in moles of carbon dioxide that can be produced.
Fe2O3 + 3CO → 2Fe + 3Co2
A. Iron (III) Oxide, 7.62 moles
B. Carbon monoxide, 5.34 moles
C. Iron (III) oxide, 2.63 moles
D. Carbon monoxide, 4.56 Moles
Answer:
Option D. Carbon monoxide, 4.56 Moles
Explanation:
The balanced equation for the reaction is given below:
Fe₂O₃ + 3CO —> 2Fe + 3CO₂
From the balanced equation above,
1 mole of Fe₂O₃ reacted with 3 moles of CO to produce 3 moles of CO₂.
1. Determination of the limiting reactant.
From the balanced equation above,
1 mole of Fe₂O₃ reacted with 3 moles of CO.
Therefore, 2.54 moles of Fe₂O₃ will react with = 2.54 × 3 = 7.62 moles of CO.
From the calculation made above, we can see that it will take higher amount of CO (i.e 7.62 moles) than what was given (i.e 4.56 moles) to react completely with 2.54 moles of Fe₂O₃. Therefore, CO is the limiting reactant and Fe₂O₃ is the excess reactant.
2. Determination of the maximum amount of carbon dioxide CO₂ produced.
In this case, the limiting reactant will be used since all of it is consumed by reaction.
The limiting reactant is CO and the maximum amount of CO₂ produced can be obtained as follow:
From the balanced equation above,
3 moles of CO reacted to produce 3 moles of CO₂.
Therefore, 4.56 moles of CO will also react to produce 4.56 moles of CO₂.
Thus, the maximum amount of CO₂ produced is 4.56 moles
Summary:
Limiting reactant => carbon monoxide, CO
Maximum amount of carbon dioxide, CO₂ produced = 4.56 moles
Thus, option D gives the correct answer to the question.
how does an object look when it is viewed through an opaque object
Which statement describes the reaction involved in cellular respiration?
O A. CO2 is removed from the atmosphere, and O2 is released into the
atmosphere.
B. Sugar is produced and stored until it is needed for energy,
O c. It is a redox reaction in which energy is released to ATP
molecules.
O D. O, is removed from the atmosphere, and CO2 is released into the
atmosphere.
Answer:
A.Photosynthesis
B.Glucose
C . fermentation
D.Aerobic respiration
Explanation:
A. glucose form as a product of photosynthesis
B.glucose is simple sugar and it must be always converted to complex sugar so that it can be stored
C.Energy converted to ATP
D.Living organisms respire using oxygen and carbon dioxide is always formed as a by product
Answer:
the awnser is c
Explanation:
When the temperature of matter increases the particles what happens
Answer:
the particles move faster
Explanation:
when the temperature of matter increases the particles move faster as they gain kinetic energy
Which statement is true about a polyatomic ion?
Answer:
The correct answer is that it is made of atoms that are covalently bonded together.
Explanation:
Hope this helped Mark BRAINLEST!!!
For the reaction
3KOH+H3PO4⟶K3PO4+3H2O
how many grams of phosphoric acid, H3PO4, are needed to react completely with 89.7 g of potassium hydroxide, KOH?
Answer:
52.2 g
Explanation:
Step 1: Write the balanced equation
3 KOH + H₃PO₄ ⟶ K₃PO₄ + 3 H₂O
Step 2: Calculate the moles corresponding to 89.7 g of KOH
The molar mass of KOH is 56.11 g/mol.
89.7 g × 1 mol/56.11 g = 1.60 mol
Step 3: Calculate the moles of H₃PO₄ needed to react with 1.60 moles of KOH
The molar ratio of KOH to H₃PO₄ is 3:1. The moles of H₃PO₄ needed are 1/3 × 1.60 mol = 0.533 mol.
Step 4: Calculate the mass corresponding to 0.533 moles of H₃PO₄
The molar mass of H₃PO₄ is 97.99 g/mol.
0.533 mol × 97.99 g/mol = 52.2 g
Select ALL factors in conservation: *
Social conditions such as need for electricity, famine, and war.
Scientific data related to the ecosystem and the effect of environmental changes.
Political action by governments and other organizations such as environmental
protection groups.
Economic issues such as cost of wood products, fuel for heat, price of electricity, and
income levels of local people.
Answer:
ALL of these are factors in conservation.
Explanation:
Discuss the nature of the bonding in the nitrate ion ( ) NO32 .Draw the possible Lewis resonance diagrams for this ion.Use the VSEPR theory to determine the steric number, thehybridization of the central N atom, and the geometry ofthe ion. Show how the use of resonance structures can beavoided by introducing a de-localized p MO. What bondorder is predicted by the MO model for the NUO bondsin the nitrate ion
Answer:
Four electrons are bounded by eight electrons
and the bond order = 4/3
Explanation:
The molecular ion has 24 valence electrons and The SN of N in the central of the structure is = 3 according to VSEPR Theory. and this depicts trigonal planar geometry about the central nitrogen also this corresponds to sp^2 hybridization of the valence orbital of the atom N.
The 6 valence electrons are shared between N and O's, while the 2p orbital of Nitrogen will combine with the 2p orbital on each oxygen atoms in order to form four (4) π molecular orbitals. the binding orbital is occupied by a pair of electrons. Four electrons are bounded by eight electrons
and the bond order = 4/3
Attached below is the Lewis structure and resonance structures of the ion ( NO^- 3 )
what is a face atom?
Answer:
Explanation:
An atom on a face is shared by two unit cells, so only half of the atom belongs to each of these cells. An atom on an edge is shared by four unit cells, and an atom on a corner is shared by eight unit cells.
PLEASE HELP ME ON QUESTION 6 ASAP!!!!!!!!!!!
Answer:
b tissues,cells,organs,organ system,organisms,populations
Tissues, Cells, Organs, Organ Systems, Organsims, Population. the correct answer is B
What causes the sugar to dissolve in water?
Answer:
Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.
Explanation:
Answer:
PORS U N DISOLVENTE ELAGA YU E LAZUCR UAE SOLN TOU
Explanation:
What internal structure do a zebra and a lion share?
Claws
Backbone
Hooves
Hair
Answer:
BACKBONEEEE
Explanation:
Answer:
the answer would be backbone
Explanation:
zebras don't have claws and lions don't have hooves. Finally, hair isn't an internal structure. the correct answer is backbone.
There is no such thing as heat.
True
False
Answer:
false
Explanation:
Answer:
false
Explanation:
Balance this equation:
MgCl2 --> Mg4+ Cl2
Answer:
4MgCl2---> 4Mg+4Cl2
Explanation:
please mark me as brainlist and be happy
Answer:
2Mgcl2 --->Mg4+cl2 i hope it help you :)))
Calculate the number of moles of H2 in 63.0g
Answer:
6 moles
Explanation:
hope this helps:)
Pls help me out ASAP
A sample of nitrogen dioxide, NO, is held at a temperature of 1195 K in a container with a volume of 25 liters and a pressure of 560 atm. How many grams of NO, are present in the container? Round your answer to two significant figures.
A) 5300g
B) 3300g
C)6600g
D)4900g