Calculate the number of moles of NaOH in an aqueous solution of 36 cm3 of 0.1 mol dm−3.
PLSS EXPLAIN WHAT YOU DO I DONT GET IT

Answers

Answer 1

Answer: The number of moles of NaOH is 0.0036 moles

Explanation:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

[tex]\text{Molarity of solution}=\frac{\text{Moles of solute}\times 1000}{ \text{Volume of solution (mL)}}[/tex] .....(1)

Given values:

Molarity of NaOH = [tex]0.1mol/dm^3=0.1mol/L[/tex]         (Conversion factor: [tex]1L=1dm^3[/tex]

Volume of the solution = [tex]36cm^3=36 mL[/tex]             (Conversion factor: [tex]1mL=1cm^3[/tex]

Putting values in equation 1, we get:

[tex]0.1=\frac{\text{Moles of NaOH}\times 1000}{36}\\\\\text{Moles of NaOH}=\frac{0.1\times 36}{1000}=0.0036mol[/tex]

Hence, the number of moles of NaOH is 0.0036 moles


Related Questions

Please select the word from the list that best fits the definition
Flow of blood from the heart to the body tissues and back to the heart

Artery
Vein
Capillary
Systemic Circulation
Pulmonary Circulation

Answers

Answer:

Systemic Circulation

Explanation:

Answer:

Systemic Circuit

Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.

Explanation:

I hope it's helpful for you ☺️

specific rights related to freedom of expression​

Answers

Answer:

beliefs, thoughts, ideas, and emotions

Explanation:

freedom of expression guarantees the freedom to express oneself without government censorship or media censorship.

State with reasons, whether sulphur dioxide is acting as an oxidizing agent or a reducing agent in each of the following reactions:

•2H2S(g) + SO2(g) -> 2H2O(l) + 3S(s)

•SO2(g) +H2O(l) +NaClO(aq) -> NaCl(aq) + H2SO4(aq)

Answers

Answer:

A) oxidizing agent is SO2

B) NaClO is the oxidizing agent

Explanation:

A) This is a redox reaction in which oxidation and reduction occur simultaneously.

Thus, in 2H2S(g) + SO2(g) -> 2H2O(l) + 3S(s);

H2S is reduced as follows;

H2S → S + 2H+ + 2e−

We can see that SO2 has been reduced while H2S gets oxidized since it has changed state from - 2 to 0 . Thus sulphur dioxide is the oxidizing agent.

B) SO2(g) + H2O(l) + NaClO(aq) -> NaCl(aq) + H2SO4(aq)

In this, SO2 undergoes oxidation and NaClO is the oxidizing agent

The half-reaction at the cathode in an electrochemical cell is given below. What other half-reaction would most likely occur at the anode to produce a spontaneous reaction?

Ni^2(aq)+2e-=Ni(s)

A. Cu(s)=Cu^2+(aq)+2e-
B. Zn(s)=Zn^2+(aq)+2e-
C. Mg^2+(aq)+2e-=Mg(s)
D. Ni(s)=Ni^2+(aq)+2e-

Answers

The half-reaction is Zn → Zn⁺² + 2e⁻ which is most likely occur at the anode to produce a spontaneous reaction.

Hence, option (B) is correct answer.

What is Spontaneous Reaction ?

A reaction which occurs without the intervention of outside is called Spontaneous reaction.  The reaction is Spontaneous when the Δ G < 0 and [tex]E^{\circ}_{\text{cell}}[/tex] > 0.

What is Cathode and Anode ?

Cathode where the reduction occurs. Anode where the oxidation take place.

Cathode: Ni⁺² + 2e⁻ → Ni

Anode: Zn → Zn⁺² + 2e⁻

______________________

Zn + Ni⁺² → Zn⁺²  + Ni

The above reaction is spontaneous reaction.

Thus, from the above conclusion we can say that half-reaction is Zn → Zn⁺² + 2e⁻ which is most likely occur at the anode to produce a spontaneous reaction.

Hence, option (B) is correct answer.

Learn more about the Spontaneous reaction here: https://brainly.com/question/2855292
#SPJ2

-. You have 100 grams of methane. How many moles do you have?

Answers

Answer:

6.25mol

Explanation:

Using the following formula;

Mole = mass ÷ molar mass

According to this question, there are 100 grams of methane (CH4)

Molar Mass of methane (CH4) = 12 + 1(4)

= 12 + 4

= 16g/mol

mole = 100/16

mole = 6.25moles

Therefore, there are 6.25moles of methane in 100g

What are most likely the values of the quantum numbers I and mI for an
electron in a 3p orbital?

A. I = 1, 2, 3; mI = -1/2, + 1/2
B. I = 3; mI = -1/2, + 1/2
C. I = 0, 1, 2, 3; mI = -1, 0, 1
D. I = 1; mI = -1, 0, 1

Answers

Answer:

I think its D

Not too sure

The quantum numbers denote the position of an electron in the orbital. The angular momentum quantum number (l) and magnetic quantum number (ml) of the 3p orbital is I = 1; mI = -1, 0, 1. Thus, option D is correct.

What are quantum numbers?

The quantum numbers are conserved quantities used to describe the energy and the position of the electron in the atomic orbital. The azimuthal, principal, magnetic, and spin are the four quantum numbers.

The angular momentum quantum number (l) represents the orbital shape and depends on the principal quantum number, n. The magnetic quantum number (ml) represents the orientation.

If an electron is in a 3p orbital then,

n = 3

l = 1

ml = -1, 0, 1

Therefore, option D. 3p orbital contains I = 1; mI = -1, 0, 1.

Learn more about quantum numbers here:

https://brainly.com/question/16977590

#SPJ5

What characterizes an Arrhenius acid-base reaction?
O A. It forms a conjugate pair.
O B. It forms a salt and water.
O C. It forms hydrogen gas.
OD. It forms a buffer in water.

Answers

An Arrhenius acid-base reaction forms a salt and water.

Arrhenius acid base reaction forms a salt and water.

Hence, option (B) is correct answer.

What is Arrhenius acid-base reaction ?

Arrhenius acid-base reaction is Arrhenius acid + Arrhenius Base means water + salt. When Arrhenius acid reacts with Arrhenius base it produce water and salt as product. This is known as neutralization reaction.

Thus, from the above conclusion we can say that Arrhenius acid base reaction forms a salt and water.

Hence, option (B) is correct answer.

Lean more about the Arrhenius acid-base reaction here: https://brainly.com/question/27153878

#SPJ2

10. A laboratory experiment requires that
exactly 3 mL of chemical be dispensed into a
test tube. Which piece of equipment would be
MOST appropriate for measuring and
dispensing the chemical?
A another test tube
B a pipette
C a beaker
D a scale balance

Answers

Answer:

B) a pipette

Explanation:

Also known as a graduated pipette, they vary in volume, with most measuring between 0 and 25.0 mL. A small pipette can be used for precise measurement of fluids.

Which of the following would DECREASE the rate of a reaction?

1. add a catalyst
2. increase the concentration
3. increase the volume
4. increase the pressure

Answers

Answer: increasing volume

Explanation: adding a catalyst would increase reaction time and increasing  INCREASING concentration definently makes reaction time alot faster increasing pressure actually makes it more concentrated, so no it is not

Which of the following equations is balanced?
(options in photo)

Answers

Answer:

Option (B)

Explanation:

Na2SO4 (aq) + CaCl2 (aq) → CaSO4 (s) + 2 NaCl (aq)

2. Which equation does not represent a neutralisation reaction?
HELP PLEASE

Answers

Answer:

Zn + 2HCl => ZnCl2 + H2

Explanation:

This equation represents salt formation or salt preparation. Thus not a neutralization reaction.

A cart accelerating slower when mass was increased.
1st Law - 3rd Law

Answers

Answer:

Newton's second law

Explanation:

It is mentioning acceleration and mass

Newton's second law's equation = F = m*a

Hope u understood

Please mark brainliest

Thank You

Nitrogen in plants and soil is changed into nitrogen compounds by _____ ?

Answers

Nitrogen Fixation because It's the process by which atmospheric nitrogen is converted either by a natural or an industrial means to form of nitrogen such as ammonia.

ionic bonds show which characteristics that arent seen in covalent bonds

Answers

Ionic bonds are when one atom is a metal and the other is a nonmetal. One atom has a high electronegativity value while the other value is relatively low. Electrons are transferred in ionic bonds.

In a covalent bond atoms are equal or similar in electronegativity values and both of the atoms are also non metals. Electrons are shared in covalent bonds.

How is the AHfusion used to calculate the energy required to vaporize a
volume of liquid?
O A. Liters liquid x 1000ml/1L x ml/g x g/mol x AHfusion
O B. Liters liquid x 1000ml/1L x g/ml x mol/g < 1/A Hfusion
C. Liters liquid 1000ml/1L x ml/g x g/mol < 1/AHfusion
O D. Liters liquid x 1000ml/1L x g/ml x mol/g < AHfusion

Answers

Your Question is complete but the options are very much confusing and contradicting. Below you will find the true and full content.

The correct answer for the given question about Enthalpy of vaporisation is ( Volume of liquid in L x 1000 g/L x ΔHvap cal/gm ) where ΔHvap = 540 cal/gm (in case of water).

What is Enthalpy of vaporisation ?

The amount of energy (enthalpy) required to convert a portion of a liquid into a gas is known as the enthalpy of vaporisation, abbreviated as ΔHvap  and also referred to as the latent heat of vaporisation or heat of evaporation.

How to solve this question?

Let E be the energy required to calculate the energy required to vaporise a volume of liquid.

Then,

E = Volume of liquid in L x Density of liquid in gm/L  x ΔHvap in cal/gm

and E will came out in calorie.

E = Volume of liquid in L x 1000 g/L x 540 cal/gm --- (in case of water)

Thus we can conclude that to calculate the energy required to vaporise a volume of liquid, we can use the formula with ΔHvap which is E = (Volume of liquid in L x Density of liquid g/L x ΔHvap cal/gm ) and the answer will be in calorie.

Learn more about Enthalpy of vaporisation here:

https://brainly.com/question/14744206:

#SPJ2

Which compound is a hydrocarbon?


C 2 H 6


H 2 O


CO 2


C 6 H 12 O 6

Answers

Answer:

C2H6 OR C6H12O6 THE ANSWER

Explanation:

C2H6

!!!!!!!!!!

because it has both hydrogen and carbon as given in the word "Hydro-carbon"

What is the biggest earthquake danger to the people inside a building ?

Answers

Answer:

Most of the hazards to people come from man-made structures themselves and the shaking they receive from the earthquake. The real dangers to people are being crushed in a collapsing building, drowning in a flood caused by a broken dam or levee, getting buried under a landslide, or being burned in a fire.

Hope this helps :> <3

(7) need help asappp plss

Answers

Answer:

See explanation

Explanation:

The cold drink chiller is a cold substance which is inserted into a bottle of drink which contains warm liquid particles at a particular temperature.

Once the drink chiller is inserted, the liquid molecules around the drink chiller become cooler, denser and sink away from the drink chiller. Other warmer, less dense molecules of the liquid drink now replaces them around the drink chiller.

A convection current is thus set up for as long as the drink chiller is working.

What is the perimeter of a polygon 8cm 6cm, 4cm, 6cm

Answers

Answer:

24cm

Explanation:

The perimeter of a polygon is obtained by the sum of the length of each side of the figure.

The polygon of the problem has four sides with the following measurements:

8cm, 6cm, 4cm and 6cm.

That means the perimeter of this shape is:

8cm + 6cm + 4cm + 6cm =

24cm

How many atoms of phosphorus are in 7.00 mol of copper(II) phosphate?

Answers

Answer: The number of phosphorus atoms in given amount of copper(II) phosphate is [tex]8.431\times 10^{24}[/tex]

Explanation:

We are given:

Moles of copper(II) phosphate [tex]Cu_3(PO_4)_2[/tex] = 7.00 mol

1 mole of copper(II) phosphate contains 3 moles of copper, 2 moles of phosphorus and 8 moles of oxygen atoms

Moles of phosphorus in copper(II) phosphate = [tex](2\times 7.00mol[/tex]

According to the mole concept:

1 mole of a compound contains [tex]6.022\times 10^{23}[/tex] number of particles

So, 7.00 moles of copper(II) phosphate will contain = [tex](2\times 7\times 6.022\times 10^{23}=8.431\times 10^{24}[/tex] number of phosphorus atoms.

Hence, the number of phosphorus atoms in given amount of copper(II) phosphate is [tex]8.431\times 10^{24}[/tex]

Which reaction occurs at the cathode of a galvanic cell that has an aluminum electrode in an electrolyte with aluminum ions and copper electrode in an electrolyte with copper ions ? The reduction potential for the reduction of Cu^ 2+ = 0.34 The reduction potential for the reduction of AP^ 3+ =-1.68V.

Answers

Answer:

[tex]{ \bf{Cu {}^{2 + } + 2e \: → \: Cu }}[/tex]

The reaction that occurs at the cathode of a given galvanic cell is:

Cu²⁺  + 2e⁻  → Cu

What is Galvanic Cell?

A galvanic cell can be defined as an electrochemical cell that converts the chemical energy of spontaneous redox reactions into electrical energy. The galvanic cell makes use of chemical reactions to generate electrical energy.

A galvanic cell consists of two half-cells and a salt bridge. Each half-cell further contains an electrode dipped into an electrolyte. When both electrodes are dipped in the same electrolyte, then there is no need for a salt bridge.

At the anode, an oxidation reaction occurs at this electrode. At the cathode, reduction occurs at this electrode. The anode has a negative potential with respect to the solution while the cathode has a positive potential with respect to the solution.

As in the question, the reduction of Cu²⁺ has a positive reduction potential. Therefore, the reduction of the copper will occur at the cathode.

Learn more about Galvanic cell, here:

https://brainly.com/question/13031093

#SPJ5

If one of the reactants in a reaction us Na2O, what is known about the products?

Answers

The answer should be A.

Ok here's the deal

the answer is A: The products will contain exactly 2 Na atoms and 1 O atom.

Explanation:

thank me later space-ex kids

can someone please explain core and valence electrons in periods for me please​

Answers

Answer:

The electrons of an atom are typically divided into two categories: valence and core electrons. Valence electrons occupy the outermost shell or highest energy level of an atom while core electrons are those occupying the innermost shell or lowest energy levels

Explanation:

i hope u get it :))

equivalent massof sodium​

Answers

Answer:

Sodium

Formula : Na

Equivalent mass:23.0

Mark me as Branliest

While playing soccer, Caria slides across one of the lines on the field. When she stands up, what base does she stop?
O calcium hydroxide
O ammonium hydroxide
O zinc hydroxide
potassium hydroxide
l

Answers

Answer:

Canxi hydroxit

Explanation:

Answer:

A- calcium hydroxide

Explanation:

Got it right on Edge.

los metales se oxidan

Answers

Los metales no se oxidan

Question 7 of 10
How much energy is required to melt 2 kg of aluminum? Use the table below
and this equation: Q- mLfusion
Substance
Latent Heat
Fusion
(melting)
(kJ/kg)
Melting
Point
(°C)
Latent Heat
Vaporization
(boiling) (kJ/kg)
Boiling
Point
("C)
Aluminum
400
660
1100
2450
Copper
207
1083
4730
2566
Gold
628
1063
1720
2808
Helium
5.2
-270
21
-269
Lead
245
327
871
1751
Mercury
11.4
-39
295
357
Water
335
0
2258
100
A. 2200 kJ
B. 800 kJ
C. 1600 kJ
D. 1100 kJ

Answers

Answer:

NO 2200! 800 proprobably

Explanation:

just did wrong

Answer:

800 kJ

Explanation:

Which statement is true for most autotrophic organisms?
A. They carry on extracellular digestion of nutrients before they ingest them.
B. They synthesize organic molecules from inorganic molecules.
C. They obtain organic molecules from heterotrophic organisms.
O O
D. They require no external energy source.

Answers

omg yees

eExplanation:

Need organic chemistry 11th grade

for practice and 1 question is enough :)

Answers

Answer:

ok all you need is a little study

Explanation:

organic chemistry isn't something to worry about is something that is a very simple concept if you understand what you're doing so a little bit of studying will help you go through it and you really don't this is not the topics that you will really understand if you just go through it as once so there is no need to worry about organic chemistry it is very simple concept just learning you are a you are close just learn all those simple aspects alkane etc it's very easy

How would the equilibrium of the reaction below be affected if the temperature decreased?​

Answers

Answer:

A. More O2, SO2, and SO3 would be produced.

Explanation:

Other Questions
NEED HELP ASAP 50 POINTS WRITING PROMPT: In this unit, you studied the challenges and benefits of 90living in the twenty-first century. What are some of the challenges andbenefits of living in a global society? Do you think there are moreadvantages or disadvantages to modern life as compared to life acentury ago? Why? (Answer must be 3 paragraphs long) what is the answer for xx HELP. THIS IS DUE TODAY. Give at least four examples of Enumerated Powers. What did you remember to include in your paragraph? please who can help with this its very urgent Before factories developed, machinery was powered by? I need help with this asap!!!! Read the excerpt from "Healthy Eating." She can also scan food to determine whether she's met her daily need. "So after I have breakfast and lunch, and if I've had too many carbs, by dinner I know I have to cut back," she said. And that kind of tailoring is key, nutritionists say. "People want me to just tell them what to eat, give them a meal plan. But they'll only follow it for two weeks," [dietician] Castro-Romero said. "So I get them to focus on the foods they're eating now and improve. One group might be soda drinkers. So we work to decrease rather than eliminate. "It's really trying to keep it simple and look at small changes. I like to say small changes produce big results." Based on this excerpt, the dietician wants people to . Lin Corporation has a single product whose selling price is $134 per unit and whose variable expense is $67 per unit. The companys monthly fixed expense is $31,750. Required: 1. Calculate the unit sales needed to attain a target profit of $8,450. (Do not round intermediate calculations.) 2. Calculate the dollar sales needed to attain a target profit of $9,700. Any little girl did this that can help my sister ? please answer I need this answer fast please Which expressions are equivalent to g + h + (j + k)? Check all that apply.1. g + (h + j) + k2. (g + h) + j k3. (g + h) + j + k4. g + (h j) + k5. g h + j k6. g (h + j) k7. g + h (j + k)will give brainlist to the correct answer!! Read the excerpt from Sea Fever by John Masefield. Then, write in the correct response for each question.Which word creates an end rhyme with sky in this stanza? Which word creates an end rhyme with shaking in this stanza? What is the term used to describe the physical features of an area of land, such as mountains and lakes?circumnavigationtopographycompass rosesettlementplsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss answer with one of the answers above A car of mass 500 kg is moving at a speed of 1.2 m/s. A man pushes the car,increasing the speed to 2 m/s. How much work did the man do?A. 640 JB. 360 JC. 1360 JD. 1000 J Given:WXYZ is a rhombus.If 5 = 20, then 1 =204070 Which equation represents a line with a slope of -2? PLEASE ITS ERGENT BARBS With the help of a diagram a boy starts at a and walks 3km east to b he then walk 4km north to c find the distance and bearing of c from a picture belowneed done by 2:30thanks, God bless your week What is it like to truly live?? Why do these things, what's the purpose??