Answers
The volume of the solution that the student will need to add to reach the equivalence point is 11.6 ml of 0.1400M NaOH solution.
For this reaction, 0.154 g of chloroacetic acid was diluted to 250 ml and titrated with 0.1400 M NaOH solution.
The reaction between chloroacetic acid ClCH₂COOH and sodium hydroxide NaOH is given as:
ClCH₂COOH +NaOH → ClCH₂COO⁻ + Na⁺ + H₂O
Here, 1 mole of the acid will react with 1 mole of the base
so, the student will reach the equivalence point when
no.of moles of chloroacetic acid = no.of moles of sodium hydroxide
molar mass of ClCH₂COOH = 94.5 g
∴ 0.154 g × (1 mol/94.5 g) = 1.63 × 10⁻³ moles of ClCH₂COOH
so, to reach the equivalence point the student should add 1.63 × 10⁻³ moles of NaOH
∴ 1.63 × 10⁻³ moles of NaOH × (1L / 0.1400 moles NaOH )
=0.0116L of 0.1400 M NaOH
Thus, 11.6 ml of 0.1400M NaOH solution is required to reach the equivalence point.
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Related Questions
FILL IN THE BLANK Collision frequency provides an upper limit on how fast a reaction can take place. The laws of probability tell us that the number of collisions depends on the _____ of the number of reactant particles, not their _____.
Answers
that the number of collisions depends on the energy, of the number of reactant particles, not their orientation.
How is energy defined?Energy is referred to by scientists as the capacity for work.People have figured out how to transform energy from one type to the other and use it to accomplish tasks, making modern civilization possible.
What function does orientation serve?boosts employee confidence and enables new hires to settle in more quickly; results in a more efficient and successful staff; increases employee retention; andencourages dialogue between the new employee and the supervisor.
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Express your answers as integers separated by commas.
Answers
Not enough information man
The symbol X in the following equation, 23/11 Na + 1/1H → 23/12 Mg + X, is a/an
Answers
Answer:
X = ¹₀n
Explanation:
The mass number is the total amount of neutrons and protons in the element. The atomic number is the total protons in the element. The mass number is the superscript and the atomic number is the subscript. The mass and atomic numbers must be balanced on both sides of the equation. The element can be identified by the atomic number.
In the event that we have an atomic number of zero, there is no element this represents, so the letter "n" should be used.
²³₁₁Na + ¹₁H → ²³₁₂Mg + X
Mass Number:
Reactants = Products
23 + 1 = 23 + ?
24 = 23 + ?
1 = ?
Atomic Number:
Reactants = Products
11 + 1 = 12 + ?
12 = 12 + ?
0 = ?
The complete equation is:
²³₁₁Na + ¹₁H → ²³₁₂Mg + ¹₀n
how is gas different from a liquid and a solid
a. a gas is mad of tiny particles
b. a gas has volume
c. a gas expands to fill the container
d. a gas has density
Answers
Answer:
a. a gas is mad of tiny particles
Explanation:
I believe
What is the role of calcium ions in the release of a neurotransmitter substance?
Answers
The emission of a transmitter is caused by the action of calcium ions, which also cause synaptic vesicle exocytosis, which releases the neurotransmitters inside the vesicles and starts synaptic transmission.
What functions does calcium ion serve in the body?Nearly all bodily biological processes, including heart and muscle pulses, neurotransmission of information, memories and learning baby creation, cell proliferation, and Calcium ions enter the cytoplasm of organelles through calcium channels.
Why are calcium ions necessary for the brain?Calcium plays a critical role in the brain's regulation of synaptogenesis and memory formation. This process activates certain calmodulin signal transmission pathways and involves important protein effectors such CaMKs, MAPK/ERKs, or CREB.
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Be sure to answer all parts.The equilibrium constant (Kc) for the formation of nitrosyl chloride, an orange-yellow compound, from nitric oxide and molecular chlorine 2NO(g) + Cl2(g) ⇌ 2NOCl(g) is 2 × 105 at a certain temperature. In an experiment, 6.00 × 10−2 mole of NO, 6.70 × 10−3 mole of Cl2, and 4.00 moles of NOCl are mixed in a 1.30−L flask. What is Qc for the experiment? × 10(Enter your answer in scientific notation.) In which direction will the system proceed to reach equilibrium? The reaction will proceed to the left. The reaction will proceed to the right. The reaction is at equilibrium.
Answers
STEP-BY-STEP EXPLANATION*
Given information*
\(\begin{gathered} \text{The number of moles of NO = 6.00 }\times10^{-2}\text{ moles} \\ \text{The number of moles of Cl2 = 6.7 }\times10^{-3}\text{ moles} \\ \text{The number of moles of NOCl = 4.00 moles} \\ K_c\text{ = 2 }\times10^5 \end{gathered}\)The first step is to write the balanced equation of the chemical reaction*
\(2NO_{(g)}+Cl_{(2)(g)}\rightleftarrows2NOCl_{(g)}\)The next step is to write the chemical equilibrium expression for the above reaction*
Do you think it's possible for someone to completely eliminate procrastination from their life? Why or why not
Answers
Answer:
No and Yes
Explanation:
This is both possible and impossible. When you put your mind to what you believe, you can achieve it through patience and minded values. Your mind can either be your Greatest enemy or your Best Ally.
Convert 6.75 cm to mm
Answers
Answer: 67.5
Explanation:
Brainliest pls
A friend uses an analogy of raisins in rising bread dough to describe galaxies in the expanding universe. Is your friend’s analogy strong? Explain.
Answers
A substance that allows heat, light, sound, or an electric charge to run through it is called a/n
Answers
Question 4 (1 point)
If the decomposition of (NH4)2(CO3) is a first-order process with a rate constant of
0.196 s-1, how much ammonium carbonate would remain after 39.0 s, starting from
a concentration of 0.957 M?
Your Answer in units:
Answers
The final concentration of the reactant of a first order reaction can be determined from the rate constant equation. The concentration of ammonium carbonate after 39 s will be 0.003 M.
What is rate constant?Rate constant of a reaction is the rate of reaction when one molar concentration of the reactant is involved in the reaction. The expression for the rate constant k for first order reaction is :
k = 1/t ln (C0/Ct)
Where C0 be the initial concentration and Ct be the concentration after t seconds.
Given that C0 of ammonium nitrate = 0.957 M
rate constant = 0.196 /s
t = 39 s.
The concentration after 39 seconds is calculated as follows:
0.196 /s = 1/39s ln (0.957 M / Ct)
Ct = 0.957 / (ln⁻¹ (0.196 × 39))
= 0.003 M.
Therefore, the concentration of ammonium carbonate after 39 seconds will be 0.003 M.
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Consider four different samples: aqueous LiBr, molten LiBr, aqueous LiF, and molten LiF. Current run through each sample produces one of the following products at the anode: liquid bromine, fluorine gas, or oxygen gas. Match each sample to its anodic product from aqueous LiBr, Molten LiBr, aqueous LiF, and molten LiFA. Liquid bromine,
B. Fluorine gas,
C. oxygen gas
Answers
Answer:
Following are the solution to the given question:
Explanation:
Please find the matching in attached file.
During the electrolysis of Molten LiBr : Li is reduced and Br are oxidized .
Lithium Metal is produced at the Cathod during the electrolysis of Molten LiBR .
In the aquous LiBr : In aquous LiBr potential of Li is greater than the of water then Li is reduced to produce solid Li ion. As well As aqueous LiF ( electrolysis)and Molten LiF electrolysis produce the gas.
aqueous LiF: Oxygen gas.
Molten LiF : Flourine gas.
A balloon contains 7.36 g of oxygen gas (02). How many oxygen molecules
are in the balloon?
The Periodic Table
O A. 236 molecules
O B. 1.38 x 1023 molecules
O C. 4.43 x 1024 molecules
O D. 15 molecules
Answers
Answer:
15 molecules
Explanation:
A balloon contains 7.36 g of oxygen gas (02). How many oxygen molecules
are in the balloon?
Why do elements have unique emission spectra?
Claim:
Evidence:
Reasoning:
Answers
each element has a different set of electron energy levels
wed
only some gases can only absorb and emit specific wavelengths of electromagnetic radiation
In using the Haber process in the formation of ammonia, what mass of hydrogen is needed to produce 51.0 grams of ammonia? 3 H₂(g) + N2 (g) → 2 NH3(g).
Answers
The mass of hydrogen needed to produce 51.0 grams of ammonia is ≈ 9.07 grams.
To determine the mass of hydrogen required to produce 51.0 grams of ammonia (NH3) using the Haber process, we need to calculate the stoichiometric ratio between hydrogen and ammonia.
From the balanced chemical equation:
3 H₂(g) + N₂(g) → 2 NH₃(g)
We can see that for every 3 moles of hydrogen (H₂), we obtain 2 moles of ammonia (NH₃).
First, we need to convert the given mass of ammonia (51.0 grams) to moles. The molar mass of NH₃ is 17.03 g/mol.
Number of moles of NH₃ = Mass / Molar mass
= 51.0 g / 17.03 g/mol
≈ 2.995 moles
Next, using the stoichiometric ratio, we can calculate the moles of hydrogen required.
Moles of H₂ = (Moles of NH₃ × Coefficient of H₂) / Coefficient of NH₃
= (2.995 moles × 3) / 2
≈ 4.493 moles
Finally, we can convert the moles of hydrogen to mass using the molar mass of hydrogen (2.02 g/mol).
Mass of H₂ = Moles × Molar mass
= 4.493 moles × 2.02 g/mol
≈ 9.07 grams
Therefore, approximately 9.07 grams of hydrogen is needed to produce 51.0 grams of ammonia in the Haber process.
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Is sodium hydroxide an alkali or an insoluble base
Answers
Need help with this two part question
Answers
The ideal gas law and stoichiometry must be used to calculate the volume of carbon dioxide gas produced by the breakdown of 4.09 g of calcium carbonate at STP (Standard Temperature and Pressure).
Use the molar mass of calcium carbonate (CaCO3) to determine how many moles it contains. CaCO3 has a molar mass of 100.09 g/mol.
CaCO3 mass divided by its molar mass equals the number of moles of CaCO3: 4.09 g/100.09 g/mol.
The number of moles of carbon dioxide (CO2) generated may be calculated using the stoichiometric ratio from the balancing equation. By using the equation:
A unit of CaCO3 and CO2 is produced.
CO2 moles equal the same number of moles of CaCO3.
Use the ideal gas law to translate the volume of carbon dioxide into moles.
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Calculate the corresponding weights of liquefied phenol and propylene glycol needed to prepare 24 15 ML - bottles of the following formula for a cood sore topical liquid:
liquefied phenol 0,4 mL
camphor 0,5 g
Benzocaine 2,2 g
Ethanol 65 mL
Propylene glycol 17 mL
Purified water ad 100 mL
Answers
Mass/corresponding weight of liquefied phenol = 1.5408 grams
Mass/corresponding weight of propylene glycol = 63.6 grams
Given that :
Total volume of the water bottles = 24 * 15 ml
= 360 ml
Volume of recipe after pure water is added = 100 ml
the number of units required = Total volume of water / volume of recipe
= 360 / 100 = 3.6 units
i) Determine the Mass ( weight ) of liquefied phenol
amount of liquefied phenol = 0.4 ml * 3.6 = 1.44 ml
given that density of liquefied phenol = 1.07 g/ml
∴ mass of liquefied phenol = density * volume
= 1.07 * 1.44 = 1.5408 grams
ii) Mass( weight ) of propylene glycol
amount = 17 * 3.6 = 61.2 ml
density of propylene glycol = 1.04 g/ml
∴ mass of propylene glycol = 61.2 * 1.04 = 63.648 grams
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1. What is the molar mass of Al?
Answers
Answer:
26.981539 u
Explanation:
Which type of plate boundary does not involve plates moving towards or away from each other, but sliding past each other?
A. Conservative
B. Convergent destructive (subduction)
C. Constructive
D. Convergent collision
Answers
Answer:
B - convergent destructive (subduction)
Explanation:
option A is not a plate boundary. A constructive plate boundary moves away from eachother and a convergent collision boundary would suggest no slipping whereas a convergent destructive boundary has subduction take place which is when a denser plate slips under a less dense plate.
Which structure is the Lewis structure for ammonia (NH3)?
A.
A bond line structure of a compound has N H H H. The nitrogen has two dots at its bottom represents a lone pair of electrons.
B.
A bond line structure of a compound has H N H in the linear plane and hydrogen is branching upward, and the compound is H N (H) H.
C.
A bond line structure of a compound has H N H in linear plane and a hydrogen is branching upward, and the compound is H N (H) H. The nitrogen has two dots at its bottom represents a lone pair of electrons.
D.
A bond line structure of a compound has H N H H. The nitrogen has two dots on its top represents a lone pair of electrons.
Answers
Answer: **
H-N-H
|
H
Explanation:
Look at a periodic table to determine how many electrons you need to account for. Hydrogen (H) only has 1 electron, while Nitrogen (N) has 5. We have three Hydrogen atoms and one Nitrogen atom, so the total number of electrons will be 3 * 1 + 5 = 8 e-.
Now, place the center atom, which will be Nitrogen and place the three Hydrogens on three sides of it as above in the answer. You should use single bonds for this. Each single bond is a pair of electrons, so since we have three single bonds so far, we have accounted for 2 * 3 = 6 electrons. However, we need 2 more electrons for the total of 8. We put these electrons in as a lone pair above Nitrogen.
We check to see if everything follows the octet rule: Nitrogen has three single bonds, so that's 6 e-, as well as one lone pair, so that's another 2 e- for a total of 8 e-. Check. Now look at Hydrogen: H is the only element whose full orbital is 2 e-. Each H has a single bond with Nitrogen, so each does have 2 e-.
Thus, we know this is the correct diagram, and we are done.
Explanation:
A bond line structure of a compound has H N H in linear plane and a hydrogen is branching upward, and the compound is H N (H) H. The nitrogen has two dots at its bottom represents a lone pair of electrons. So ,the correct answer is option C.
The correct Lewis structure for ammonia (\(NH_3\)) is option C. It shows a bond line structure with three hydrogen atoms (H) bonded to a central nitrogen atom (N) in a linear plane.
One hydrogen atom branches upward from the plane. Additionally, the nitrogen atom in this structure has two dots at its bottom, indicating a lone pair of electrons. This arrangement follows the octet rule, as nitrogen has formed three covalent bonds with hydrogen, completing its valence shell. The lone pair on nitrogen gives ammonia its characteristic properties.
Thus, option C accurately represents the Lewis structure of ammonia, showing the bonding and lone pair arrangement of its atoms.
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if a rock was formed by volcanic prossesces whsat type of rock would it be
Answers
Answer:
Igneous rock
Explanation:
This rock is formed from the process of cooling and freezing of magma or lava that flows out of the mantle.
What is the noble gas configuration of the element in group 2 and period
4 of the periodic table?
Answers
Answer:
[Kr] 4d² 5s²
Explanation:
In group 2 and period 2 is the element Zirconium. Here's an example A noble gas configuration of an atom consists of the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons. So for sodium, we make the substitution of [Ne] for the 1s22s22p6 part of the configuration. Sodium's noble gas configuration becomes [Ne]3s1.
What is the mass of an object with a density of 1.35 g/mL & a volume of 24 mL?
gas,
che
on ozunds
Answers
Answer:
32 grams
Explanation:
To find the mass of the object, you need to multiply the given volume by the denisty. The denisty ratio compares the mass of an object per every 1 mL. It is important to arrange the denisty ratio in a way that allows for the cancellation of units (mL should be in the denominator). The final answer should have 2 sig figs.
Denisty = 1.35 g/mL
24 mL 1.35 g
---------------- x ----------------- = 32.4 g = 32 g (correct sig figs)
1 mL
What is inside a Atom?
Answers
Answer:
there are three different subatomic particles inside them: the protons, neutrons, and electrons
IF YOU CAN HELP ME THAT WOULD BE GREAT
Hydrogen sulfide, H2S, is a contaminant in natural gas. It can be removed by the reaction CH4(g) + 2H2S(g) CS2(g) + 4H2(g). Heat is required to make the reaction occur. Use this reaction to answer the following questions
i. What would happen to the equilibrium position if more CS2(g) were added? Would this increase or decrease the amount of H2S?
ii. What would happen to the equilibrium position if the temperature were increased? Explain your answer
iii. What would happen to the equilibrium position if the pressure were increased? Explain your answer
Answers
I. Changing the pressure:
Increasing the pressure: the amount of H₂S(g) will increase.
Decreasing the pressure: the amount of H₂S(g) will decrease.
II. Changing the temperature:
Increasing the temperature: the amount of H₂S(g) will decrease.
Decreasing the temperature: the amount of H₂S(g) will increase.
III. Changing the H₂ concentration:
Increasing the H₂ concentration: the amount of H₂S(g) will increase.
Decreasing the H₂ concentration: the amount of H₂S(g) will decrease.
Explanation:
Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.
I. Changing the pressure:
When there is an increase in pressure, the equilibrium will shift towards the side with fewer moles of gas of the reaction. And when there is a decrease in pressure, the equilibrium will shift towards the side with more moles of gas of the reaction.
For the reaction: CH₄(g) + 2H₂S(g) ⇄ CS₂(g) + 4H₂(g),
The reactants side (left) has 3.0 moles of gases and the products side (right) has 5.0 moles of gases.
Increasing the pressure: will shift the reaction to the side with lower moles of gas (left side), amount of H₂S(g) will increase.
Decreasing the pressure: will shift the reaction to the side with lower moles of gas (right side), amount of H₂S(g) will decrease.
II. Changing the temperature
The reaction is endothermic since the sign of ΔH is positive.
So the reaction can be represented as:
CH₄(g) + 2H₂S(g) + heat ⇄ CS₂(g) + 4H₂(g).
Increasing the temperature:
The T is a part of the reactants, increasing the T increases the amount of the reactants. So, the reaction will be shifted to the right to suppress the effect of increasing T and the amount of H₂S(g) will decrease.
Decreasing the temperature:
The T is a part of the reactants, increasing the T decreases the amount of the reactants. So, the reaction will be shifted to the left to suppress the effect of decreasing T and the amount of H₂S(g) will increase.
III. Changing the H₂ concentration:
H₂ is a part of the products.
Increasing the H₂ concentration:
H₂ is a part of the products, increasing H₂ increases the amount of the products. So, the reaction will be shifted to the left to suppress the effect of increasing H₂ and the amount of H₂S(g) will increase.
Decreasing the H₂ concentration:
H₂ is a part of the products, decreasing H₂ decreases the amount of the products. So, the reaction will be shifted to the right to suppress the effect of decreasing H₂ and the amount of H₂S(g) will decrease.
(i)Until a new equilibrium is reached, the amounts of reactants (CH₄ and H₂S) will rise while the amounts of CS₂ will fall. (ii)The equilibrium position will move to the right, causing the concentrations of CS₂ and H₂ to rise while those of CH₄ and H₂S will drop. (iii)Altering the pressure won't have an immediate impact on the equilibrium position.
Le Chatelier's principle must be taken into account in order to comprehend the variations in the equilibrium position and the quantities of reactants and products. According to this theory, if a system that is in equilibrium experiences a change in the environment, the system will adapt to deal with the change and find a new equilibrium position.
(i)Le Chatelier's principle states that adding more of a product (in this case, CS₂) will cause the equilibrium position to move to the left in order to offset the change. As a result, until a new equilibrium is reached, the amounts of reactants (CH₄ and H₂S) will rise while the amounts of CS₂ will fall.
(ii)If the temperature were raised: The reaction in question is endothermic since it needs heat to produce CS₂ and H₂. Le Chatelier's principle states that when the temperature of an endothermic process is raised, the production of products to absorb the additional heat is encouraged. As a result, the equilibrium position will move to the right, causing the concentrations of CS₂ and H₂ to rise while those of CH₄ and H₂S will drop.
(iii). If the pressure were raised: In the reaction that is being described, there are exactly two moles of gas on each side. As a result, altering the pressure won't have an immediate impact on the equilibrium position. Changes in pressure, however, may affect the reaction if any of the
Changes in pressure won't have a direct impact on the equilibrium position because the provided reaction has the same number of moles of gas on both sides. Changes in pressure could nonetheless have an indirect effect on the reaction if any species are in a changed physical state.
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Magnesium velocity acceleration
Answers
A sample of helium occupies 12.0 L at a pressure of 25.0 atm. What volume would the helium gas occupy at a pressure of 1.00 atm?
Answers
Volume would the helium gas occupy at a pressure of 1.00 atm is 2.08 Liters by using Charle's law.
Helium is a safe, non-flammable gas that is frequently used to fill balloons for festivals and parades. Helium, however, is a crucial component in a variety of industries, including high technology, science, and even national security.
According to Charle's Law: V1 / T1 = V2 / T2, the volume that helium gas would occupy at a pressure of 1.00 atm
V1/T1=V2/T2
12/25=V2/1
V2=2.08 L
Everything is conceivable. Pure helium inhaling causes the body to lose oxygen as if you were holding your breath. If you were unable to breathe at all, your body would run out of blood-stored oxygen within minutes, and you would start to lose consciousness.
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50 points
Which elemental family receives electrons in an ionic bond?
Responses
noble gases
metals
halogens
nonmetals
Answers
Answer: es no metales
Explanation:
How do we measure forces?
Answers
Answer:
That depends.
Explanation:
We can measure force as mass*accelerations for physics