what is the molarity of the NaOH

Answers

Answer 1

the answer is:

40 g/mole


Related Questions

How can i calculate the concentration of 2.357g of sodium chloride in 75ml solution

Answers

Answer:

See below

Explanation:

Simply :    2.357 g / 75 ml = .03142  gm/ml   or  31.42  gm / liter

What is the correct formula that would result from the combination of the two ionic species?
Cs¹+ and Cl¹-

Answers

Answer: CsCl

Explanation:

When naming ionic compounds, the metal comes before the nonmetal.

PLEASE HELP FAST! When 23.3 g of O2 reacts with 18.3 g C10H8, what is the limiting reactant. The equation is C10H8 + 12O2 --> 10CO2 + 4H2O?

Choices:
A. C10H8
B. O2
C. CO2
D. H2O

Answers

Answer:

B

Explanation:

The answer is B, O2

O₂ is the limiting reagent.

What is a limiting reactant?

A limiting reactant is described as the one that will be consumed first in a chemical reaction.

Calculation

C₁₀H₈ + 12O₂ → 10CO₂ + 4H₂O

Given, Mass of O₂ = 23.3 g

           Mass of C₁₀H₈ = 18.3 g

Molar mass of O₂ = 32 g

No. of moles of O₂ = 32/23.3 = 1.4 moles

Molar mass of C₁₀H₈ = 128 g

No. of moles of C₁₀H₈ = 128/18.3 = 6.9 = 7 moles

According to the equation,

1 mole of C₁₀H₈ yields 10 moles of CO₂. So, 7 moles of C₁₀H₈, give 70 moles of CO₂.

12 moles of O₂ yields 10 moles of CO₂. So, 1.4 moles of O₂ give 1.16 moles of CO₂.

We do know, however, that based on our balanced equation, if we were to totally react all 1.4 moles of O2, we could only produce a maximum of 1.16 moles of CO2. Even while there is enough C10H8 to generate more, the amount of O2 we have is a limiting factor because it will be consumed first.

So, our limiting reactant is O₂.

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what is formed when mixing a weak acid and strong base

Answers

Explanation:

when a weak acid and a strong based are mixed they react the pH can be determined by consider ing the equilibrium

The answers is Equilibrium

Q2. Name, constituent of petroleum (Petrochemicals) which is used for following purposes.

(i) To make candles.
(ii) A solvent for dry cleaning
(iii) For surfacing roads.
(iii) Jet engine fuel.
(v) For lubrication.

Answers

The constituents of petroleum that are used for the following purposes are as follows:

To make candles ----- Paraffin waxA solvent for dry cleaning ----- PetrolFor surfacing roads ----- BitumenJet engine fuel ----- KeroseneFor lubrication ----- Lubricating oil.

What are the constituents of petroleum?

The constituents of petroleum are LPG, bitumen, paraffin wax, lubricating oil, kerosene, diesel, etc. These compounds are a mixture of hydrocarbons.

Therefore, each constituent of petroleum that is used for the following purposes is mentioned above with proper names.

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How many xenon atoms are contained in 2. 36 moles of xenon?.

Answers

Answer:

14.212 x 10^23 atoms

Explanation:

Xenon is a noble gas and is MONOTOMIC so

EACH mole is an Avagadro's Number of atoms

   2.36 * 6.022 x 10^23   atoms =

A switch controls the current in a circuit that has a large inductance. The electric arc at the switch (Fig. CQ32.3) can melt and oxidize the contact surfaces, resulting in high resistivity of the contacts and eventual destruction of the switch. Is a spark more likely to be produced at the switch when the switch is being closed, when it is being opened, or does it not matter

Answers

When the circuit is opened, a spark is much more possible.

What is an inductor?

The primary purpose of an inductor is the storage of energy. This is why an inductor helps to eliminate a spark in a circuit.

In the circuit as described in the question, we know that there is no current when the circuit is closed, the current across the inductor remains constant but rapidly decreases at the opening of the circuit this could lead to a spark.

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balanced equation for bromine and potassium iodide?

Answers

Answer:

Br2+KI→KBr+I2

Explanation:

in this experiment, calcium hydroxide was partially dissolved in pure water. which of the following choices correctly expresses the relationship between [ca2 ] and [oh−] in this mixture?

Answers

The relationship between [tex][Ca2^{2+}][/tex] and [tex][OH^{-}][/tex] in this mixture is that there are 2 mole of hydroxide ions for every 1 mole of calcium ions.

What is solubility of a solute?

The solubility of a solute is the amount of solute that can dissolve in a given volume of solvent at a particular temperature.

Calcium hydroxide is partially soluble in water. The dissolution of calcium hydroxide in water produces calcium ions and hydroxide ions.

The equation  of the reaction is given below:

[tex]Ca(OH)_{2} \leftrightharpoons Ca^{2+} + 2\:OH^{-}[/tex]

Based on the equation of reaction, there are 2 mole of hydroxide ions for every mole of calcium ions.

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The table below shows the electronegativity values of various elements on the periodic table.
Electronegativities
1
2
15 16 17
24
3A 4A 5A 6A 7A
Li Be
8
F
1.0 1.5
2.0 2.5 3.0 3.5 4.0
Na Mg
P
0.9 1.2
1.5 1.8 2.1 2.5 3.0
K
Ca
Ge As Se Br
1.8 2.0 2.4 2.8
0.8 1.0
Rb Sr
2.5
0.8 1.0
Cs Ba
0.7 0.9
Which pair of elements would form an ionic bond?
O carbon (C) and oxygen (0)
H
2.1
a
ON
00
O

Answers

An ionic bond can be formed between Na and O, Mg and F or Li and H since they have large differences in their electronegativity values.

What are ionic bonds?

Ionic bonds are the bonds present in ionic compounds.

Ionic bonds are formed due to the electrostatic forces of attraction that exist between oppositely-charged ions.

Ionic bonds are formed between elements whose electronegativity values are far apart.

Thus, based on the given electronegativity values, an ionic bond can be formed between Na and O, Mg and F or Li and H.

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An ionic bond can be formed between Na and O, Mg and F or Li and H since they have large differences in their electronegativity values.

What are ionic bonds?

Ionic bond, also called an electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Metal atoms form positive ions, while non-metal atoms form negative ions. The strong electrostatic forces of attraction between oppositely charged ions are called ionic bonds.

Ionic bonds are formed between elements whose electronegativity values are far apart.

Thus, based on the given electronegativity values, an ionic bond can be formed between Na and O, Mg and F or Li and H.

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Fast food and juice boxes are example of which of these?
group of answer choices

habitat destruction

air pollution

water pollution

overpackaging

i need a answer within 20 mins i will give 30 points

Answers

Answer:

habitat destruction I think

Explanation:

Prepare a project report on various samples of
a) a mixture
b) a compound
c) an element ( metal or non metal)
( 2 from each ) highlighting the main characteristics features of elements, compounds and mixtures.

Answers

Answer:

please mark me as brain list

Explanation:

Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P4) or sulfur (S8) cannot be broken down into simpler substances by these reactions

Example: Water decomposes into a mixture of hydrogen and oxygen, on the other hand, cannot be decomposed into simpler substances. They are therefore the elementary, or simplest, chemical substances elements.

Each element is represented by a unique symbol. The notation for each element can be found on a periodic table of elements.

The elements can be divided into three categories that have characteristics properties: metals, nonmetals and semimetals. Most elements are metals, which are found on the left and toward the bottom of the periodic table. A handful of nonmetals are clustered in the upper right corner of the periodic table. The semimetals can be found along the dividing line between the metals and the nonmetals.

Helpp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

A homogenous mixture is that mixture in which the components mix with each other and its composition is uniform throughout the solution. A heterogenous mixture is that mixture in which the composition is not uniform throughout and different components are observed.

will you be my friend

Answer:

your cool

Explanation:

How many grams of aluminum will
react fully with 1.25 moles Cl₂?

Answers

2Al + 3Cl₂ → 2AlCl₃

mol Al = 2/3 x 1.25 = 0.83

mass Al = 0.83 x 27 g/mol = 22.41 g

According to the stoichiometry 21.66 grams of aluminum will react fully with 1.25 moles Cl₂.

What is stoichiometry?

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is useful in balancing chemical reactions.

According to the chemical reaction between aluminium and chlorine, 2 moles of aluminium reacts with 3 moles of chlorine , thus,1.25 moles of chlorine will react 1.25×2/3=0.83 moles which is mass of aluminium =0.83×26=21.66 g.

Thus, 21.66 grams of aluminum will react fully with 1.25 moles Cl₂.

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What was the weakness of the rutherford model of the atom that bohr addressed?

Answers

The weakness of the rutherford model of the atom that bohr addressed is that

The energy of the atom is quantized andThe atom does not lose energy as the electon rotates about the nucleus

What is Rutherford model of the atom?

The Rutherford model of the atom proposed by Ernest Rutherford in 1911 shows that the atom is much hollow space with its mass concentrated at the center being surrounded by electrons. It is the planetary model.

What is the Bohr model of the atom?

The Bohr model of the atom proposed by Neils Bohr in 1913 suggests that

the energy of an atom is quantized and that it does not lose energy as the electron rotates about the nucleus.

What was the weakness of the rutherford model of the atom that bohr addressed?

The weakness of the rutherford model of the atom that bohr addressed is that

The energy of the atom is quantized andThe atom does not lose energy as the electon rotates about the nucleus

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Find the magnetic force experienced by a proton moving with the speed of 3 × 105 m/s in the magnetic field B of magnitude 6 × 10-5 T.

Answers

The magnetic force experienced by a proton moving with a speed of 3 ×[tex]10^{5}[/tex] m/s in the magnetic field B of magnitude 6 ×[tex]10^{-5}[/tex] T will be 2.88×[tex]10^{-18}[/tex] N.

Magnetic force can be defined as the attraction or repulsion force that arises between electrically charged particles due to the motion of the charged particles.

Given,

Speed = 3×[tex]10^{5}[/tex] m/s

Magnetic Field, B= 6 ×[tex]10^{-5}[/tex] T

Magnetic force is the product of velocity, the charge of a proton, and the magnetic field present there.

The magnetic force can be represented as:

F=qvB

F=1.6×[tex]10^{-19}[/tex]×3×[tex]10^{5}[/tex] ×6 ×[tex]10^{-5}[/tex]

F=2.88×[tex]10^{-18}[/tex] N

Hence, the magnetic force experienced by the proton will be 2.88×[tex]10^{-18}[/tex] N.

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The greatest progress in reducing atmospheric levels of lead pollution resulted from Group of answer choices the switch from lead to graphite in pencils. new types of lead scrubbers on smokestacks that removed lead from the air. the development of new types of batteries that use lithium instead of lead. the elimination of leaded gas.

Answers

The greatest progress in reducing atmospheric levels of lead pollution resulted from the elimination of leaded gas.

What is atmospheric lead pollution?

Atmospheric lead pollution refers to the presence of lead particles in the atmosphere.

Lead is a pollutant which affects the respiratory system.

Fuels that contains lead when burned releases lead into the atmosphere.

Therefore, the greatest progress in reducing atmospheric levels of lead pollution resulted from the elimination of leaded gas.

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a burning candle wax reacts with oxygen. after a glass jar is placed over it, the candle goes out. what is the limiting reactant?

Answers

If the candle goes out when a glass jar is placed over it, then oxygen is the limiting reactant.

What is a limiting reactant?

The limiting reactant is the reactant that is present in the least amount. When the limiting reactant is exhausted, the reaction comes to a halt.

Thus, if the candle goes out when a glass jar is placed over it, then oxygen is the limiting reactant.

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justify the statement nuclear energy is harmful as well as useful

Answers

The beneficial effects of nuclear energy is usually overlooked because of its potentially devastating side-effects

If air was not allowed to stream
through the kiln, how would the
production of lime be affected?
Explain your answer.

Answers

Answer:

The air flow carries away the carbon dioxide formed during the decomposition. Once accumulated in the furnace or if the air was not allowed to stream through, it begins to react again with the newly formed calcium oxide, equilibrating rather than completing the reaction.

Question 10 of 10
Why are railroad tracks built with a flexible expansion and contraction joint?
OA. The tracks have a larger coefficient of linear expansion than the
ground beneath.
B. The two have equal coefficients of linear expansion.
C. The ground beneath has a larger coefficient of linear expansion
than the tracks.
OD. The tracks have a smaller coefficient of linear expansion than the
ground beneath.

Answers

Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Hence, Correct opotion is option (A)

Where is linear expansion used?

The linear expansion of a solid under a change in temperature can be measured using Δℓ/ℓ = αΔT and has applications in the ways solids expand and contract in everyday life.

The strain that the object undergoes has implications in engineering when fitting objects among each other.


Hence, Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Therefore, Correct opotion is option (A)

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What will be the next step in this calculation?​

Answers

You have to first do “X” then move on to your other answer then once u get that you add then that would be your final answer:)
Do it how you saw it.

just multiply 2.188x10^6 by 2 and divide the answer by 3, the answer is your V.

let's do it:

V = 2.188x10^6 x 2

————————

3

V = Answer

————

3

V = (what you got)

Try finding them with calculator or something.

Hope this helps.Good luck ✅.And I wish this can still help.

Answer this please!!!

Answers

Answer:

c

Explanation:

The answer is both i and iii.

There are 164 g H3PO3 formed during a
reaction. How many moles of H₂O are
required? (H3PO3: 82 g/mol)

Answers

Answer:

13448

Explanation:

i think im wrong but

164(82)=13448

it's 82g/mol) for this question

The first step in the formation of all three products is the loss of the ots leaving group to give a carbocation intermediate. this intermediate is resonance-stabilized, and products b and c are generated from a different resonance structure than the one used to generate product a. draw the other resonance structure (using the carbon skeleton provided) and add curved arrow(s) to convert the first resonance structure into the second one.

Answers

The carbocation stabilized by resonance structure and thereby lowers the energy of the carbocation, hydrogen will add to the carbon in the double bond that produces delocalization of electrons.

What is carbocation?

A carbocation is a molecule in which a carbon atom has a positive charge and three bonds.

In general, electrons are stabilized by delocalization. The stabilization energy engendered by delocalization over more than two atoms is called the resonance stabilization energy or simply the resonance energy. The greater the extent of electron delocalization the greater the resonance stabilization.

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Add distilled water to the beaker until the volume
totals 15 mL.
Record the amount of sodium chloride that
dissolved.

Answers

Ionic compounds such as sodium chloride, which dissolve in water and dissociate to form ions, are called electrolytes.

What are electrolytes?

Electrolytes are substances that have a natural positive or negative electrical charge when dissolved in water.

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

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a sample of helium gas has a volume of 1.00 l. what is the final volume if both the pressure and kelvin temperature each double?

Answers

If the both pressure and temperature of the helium gas is doubled, the final volume is 1.00 Liters.

What is the final volume of the helium gas?

Combined gas law put together both Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that "the ratio of the product of volume and pressure and the absolute temperature of a gas is equal to a constant.

It is expressed as;

P₁V₁/T₁ = P₂V₂/T₂

Given that;

Initial volume V₁ = 1.00LInitial Pressure = PInitial temperature = TFinal pressure = 2PFinal temperature = 2TFinal volume V₂ = ?

P₁V₁/T₁ = P₂V₂/T₂

P₁V₁T₂ = P₂V₂T₁

V₂ = P₁V₁T₂ / P₂T₁

V₂ = ( P × 1.00L × 2T ) / ( 2P × T )

V₂ = ( 2.00L × P × T ) / ( 2 × P × T )

V₂ = ( 1.00L × P × T ) / ( × P × T )

V₂ = 1.00L

If the both pressure and temperature of the helium gas is doubled, the final volume is 1.00 Liters.

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The hydrogen emission spectrum is shown below. What is the energy of the
410 nm emission line? (The speed of light in a vacuum is 3.00 x 108 m/s, and
Planck's constant is 6.626 x 10-34 J.s.)
400
750 pm

Answers

Answer:

C.) 4.85 x 10⁻¹⁹ J

Explanation:

To find the energy, you need to use the following equation:

E = hc / w

In this formula,

-----> E = energy (J)

-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)

-----> c = speed of light (3.00 x 10⁸ m/s)

-----> w = wavelength (m)

Once you have converted nanometers to meters, you can plug the given values into the equation and solve.

410 nm                1 m
-------------  x  ----------------------  =  4.10 x 10⁻⁷ m
                        1 x 10⁹ nm

E = hc / w

E = (6.626 x 10⁻³⁴ J*s)(3.00 x 10⁸ m/s) / (4.10 x 10⁻⁷ m)

E = 4.85 x 10⁻¹⁹ J

What is a chemical bond?

A. When electrons are shared between atoms

B. When protons are shared between

C. When neutrons are shared between atoms

Answers

Answer:

a

Explanation:

the bond is shared between the atoms because whith out it you cant have one

You test your hypothesis by completing a(n) _________.

Answers

You test your hypothesis by completing an experiment.

How we test our hypothesis?

We test our hypothesis by performing experiment or research because in an experiment, we test our hypothesis and collect data in order to draw a conclusion from it.

So we can conclude that you test your hypothesis by completing an experiment.

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Other Questions
Which best states how the book don quixote reflected renaissance humanism? it shows that people are responsible for their choices. it shows that people are capable of doing great things. it shows that people are not responsible for their choices. it shows that people are not capable of doing great things. 1.Simplify using suitable properties (i) 1351+2 Change the underlined words into the subjunctive mood and then record the correct sentences finally explain in english why each of the sentences required the subjunctive Javier is comparing costs of two cars. Car A costs $130 per month for insurance and $0.10 per mile to run. Car B costs $108 per month for insurance and $0.15 per mile to run. He defines x as the number of miles driven each month and y as the total cost to run the car. Which set of equations can be used to find the number of miles Javier would need to drive to make the costs equal?0.10 x = 130. 0.15 y = 108y = 0.10 x + 130. y = 0.15 x + 1080.10 x = 108. 0.15 y = 130y = 0.15 x + 130. y = 0.10 x + 108 Change Everybody forgets that to passive voice What are the zeros of the quadratic function f(x) equals 6X squared +12 X -7 Select all the correct answers.The diagram shows the construction of two tangent lines to a circle from a point outside the circle.A circle with a center O. Two tangents, JP and KP are drawn from the same external point P. A horizontal line is drawn from P to O. A vertical line is drawn through the tangent and intersects the horizontal line at M. A line connects JM.From the diagram, which three statements are true?- line segment MJ Line segment MP-OJPOML-OJMJMO- line segment OMline segment MP- line segment OJline segment MJ- line segment LMline segment MP The ideology that rejected assimilation into white middle-class society and supported the creation of Black-controlled political and economic institutions was known as Which of the following reactions depicts a decompostion reaction? Read the following sentence from paragraph one of Federalist No. 10 and answer the question.Let us examine the points in which it varies from pure democracy, and we shall comprehend both the natureof the cure and the efficacy which it must derive from the UnionWhich of the following best characterizes Madison's approach in this excerpt? 3. When using set builder notation, what does it mean to 'Define a set'? Which answer choice best completes the sentence?A major impact of the Columbian Exchange on western Europe was the introduction of __________.A.Christianity, which led to the rise of the Catholic ChurchB.new food crops, which improved the European dietC.diseases, which drastically reduced the population of EuropeD.new military technology, which weakened local rulers The energy produced during photosynthesis can be stored in the form of ______. ADP proteins sugars fats Which of the following tests is helpful in determining the cause of synesthesia? a. PET c. DTI b. MRI d. all of the above cows were marked on their rear ends because predators often attack from behind Match the following reasons with the statements to complete the following proof. What is the measurable quantity given by its formula with the appropriate units [tex]\frac{5}{x+5}(2x-5(2))[/tex] If it is now 1:15, what time will it be in 1 1/2 hours' time? What is equivalent? A B C OR Dplease help