Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction:

2 H2O2(l) → 2 H2O(l) + O2(g) ΔH = -196 kJ

Calculate the value of q (kJ) in this exothermic reaction when 5.00 g of hydrogen peroxide decomposes at constant pressure.

Answers

Answer 1

The value of q (kJ) in the exothermic reaction when 5.00 g of hydrogen peroxide decomposes at constant pressure is 14.40kJ.

What is an exothermic reaction?

Exothermic reaction is the reaction in which the standard enthalpy change of the reaction is negative that is there is release of heat energy.

The q (kJ) in the exothermic reaction can be calculated as,

2 H2O2(l) ------> 2 H2O(l) + O2(g)         ΔH = -196 kJ

So, 196kJ of heat (q) will be released for every 2 moles of hydrogen peroxide. To calculate the heat released for 5.00 g of hydrogen peroxide,

Number of moles of hydrogen peroxide = 5.00g / 34.016 g/mol

n = 0.147

q = -196 x 0.147 / 2 = 14.40kJ.

Therefore, 14.40kJ of heat is released by 5.00 g of hydroxide peroxide when it decomposes in the exothermic reaction.

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Related Questions

How many g of NaCl (M, = 58.44 g/mol) are needed to make 3500 ml of a 5 M
solution?

Answers

1022.7 g of NaCl are needed to make 3500 ml of 5M solution

What is molarity?

It is defined as the total number of moles of solute per litre of solution.

M = n / V

where

M = molarity ( 5M )

n = no of moles

V = volume ( in litres)

For volume in mL

M = n * 1000 / V

As we know, n = w / M.M

where

n = no of moles

w = given mass ?

M.M = molar mass (58.44)

Substituting all the formulas:

M = n / V

= (w / M.M ) * (1000/ V in mL)

w = (M * M.M * V ) / 1000

= ( 5 * 58.44 * 3500 )/ 1000

= 1022.7 g

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True or False: Neurons transmit information in one direction only.

False
True

Sensory receptors pick up on senses from outside the body. To respond to the sense, what path does the information follow?

motor neuron - interneurons – sensory neuron
interneurons – motor neuron – sensory neuron
sensory neuron – motor neuron – interneurons
interneurons – sensory neuron – motor neuron
motor neuron - sensory neuron - interneurons
sensory neuron – interneurons – motor neuron

Which neuron carries signals from the hand to the spinal cord?

sensory neuron
motor neuron
interneuron

Which neuron carries signals in the body around the spinal cord?

motor neuron
interneuron
sensory neuron

Which neuron carries signals from the spinal cord to the hand?

sensory neuron
motor neuron
interneuron

Why would this path of neurons not work to perform a reflex?
Select all that apply.

the motor neuron should be the interneuron
the motor neuron should be the sensory neuron
the sensory neuron should be the interneuron
the interneuron should be the motor neuron

Answers

1) Neurons transmit information in one direction only. it is true

2) Sensory neuron - interneurons - motor neuron.

3) sensory neuron.

4) motor neuron

5) motor neuron.

Neurons transmit information in one direction only.

Sensory receptors pick up on senses from outside the body. To respond to the sense, path does the information follow as:

Sensory neuron - interneurons - motor neuron.

neuron carries signals from the hand to the spinal cord is  sensory neuron.

neuron carries signals in the body around the spinal cord is moto neuron.

neuron carries signals from the spinal cord to the hand is motor neuron.

Thus, 1) Neurons transmit information in one direction only. it is true

2) Sensory neuron - interneurons - motor neuron.

3) sensory neuron.

4) motor neuron

5) motor neuron.

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True or False: The Kinetic Molecular Theory states that particles move in random, straight line paths.

Answers

It’s True, I think.

The average kinetic energy of the molecules in a gas sample depends only on the temperature, . However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed

rms speed=3ℳ⎯⎯⎯⎯⎯⎯⎯⎯⎯√
where =8.314 J/(mol⋅K) and ℳ is molar mass in kilograms per mole. Note that a joule is the same as a kilogram‑meter squared per second squared (kg·m2/s2).

What is the rms speed of O2 molecules at 371 K?
rms speed:
m/s
What is the rms speed of He atoms at 371 K?
rms speed:
m/s

Answers

The rms speed of O₂ and He molecules at 371 K are 384.8m/s and 192.4m/s respectively.

What is the Root mean square (rms) speed?

This refers to the way to calculate a single velocity value for the particles. The average velocity of a gas particle can be calculated using the root mean square velocity formula.

rms speed =[tex]\sqrt{3RTM}[/tex]

Where,

Root Mean Square speed, rms speed

Universal gas Constant,R =8.314 J/(mol⋅K)

Absolute Temperature,T =371 K

Molar mass of substance,M

From the question:

M of  O₂= 2*8

            =16

M of  He = 2*2

             =  4

rms speed O₂ =[tex]\sqrt{3RTM}[/tex]

                      =          [tex]\sqrt{(3*8.314* 371*16)}[/tex]

                       =384.8m/s

rms speed He =[tex]\sqrt{3*8.314 *371*4}[/tex]

                       =192.4m/s

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MULTIPLE CHOICE QUESTION
When an electron is removed from Cesium,
what element does it LOOK LIKE?
Krypton
Xenon
Neon
Argon

Answers

Answer:

B. Xenon

Explanation:

On the periodic table, every element has an "atomic number". This number states how many electrons there are in an element.

Cesium's atomic number is 55, which indicates it has 55 electrons. 55 minus 1 is 54 electrons. The element that has 54 electrons is Xenon, whose atomic number is 54.

What are the differences between physical and chemical separation? 

Answers

Answer: Separation

Physical changes do not alter the nature of the substance, they simply alter the form. Pure substances, such as compounds, can be separated through chemical changes. Chemical changes change the chemical composition of a substance and can only occur through a chemical reaction

5. What will happen to warmer ocean water?
It will rise.
It will evaporate.
It will sink.
It will freeze.

Answers

Nowadays, oceans are much warmer than the previously one. The oceans are heating very fastly nowadays due to the change in a climate. When ocean is warmer, it will rise the sea levels.

When the ocean is warmer or the water is heated, it takes up more space. Due to this, rise in the sea levels are occurred. In addition to this, warming of oceans causes faster melting of ice sheets in the ocean, which rises the sea level even more. Rising sea level causes more flooding, intense and long lasting tropical storms.

Therefore, warmer ocean water rises the sea level. Hence, the first option is correct.

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Answer:

It will rise up

Explanation:

Hope this helps

how many kilometers are in 230 m

Answers

here the 230 m have how many km = 230/1000

=0.23km

Answer:

The answer is 0.23 km.

Divide the length by 1000.  Example 230 m / 1000 = 0.23 km

A scientist mixes water (containing no salt) with a solution that contains 45% salt. She wants to obtain 225 ounces of a mixture that is 30% salt. How many ounces of water and how many ounces of the 45% salt solution should she use?

Answers

The ounces of water needed for 45% of the salt solution is 75 ounces.

What is solution?

The homogeneous mixture of solid, liquid or gases with a solvent is called as a solution. All the components in the solution appear as a single phase which is homogeneous.

The solution of salt and water contains 45% salt. The ounces of water for 45% of the salt solution can be calculated as,

If V is the volume of water added in ounces then 225 - V is the volume of 45% salt solution needed,

0.45 x (225 - V) = 0.3 x 225

101.25 - 0.45V = 67.5

V = 75

Therefore, 75 ounces of water should be added to the solution.

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Determine the volume of a 0.100 M KMnO4 solution required to completely react with 2.05 g of Zn.
Express your answer using three significant figures.

Answers

The volume of a 0.100 M KMnO4 solution required to completely react with 2.05 g of Zn.193 ml.

Molar attention is a degree of awareness of a chemical species, specifically of a solute in a solution, in phrases of amount of substance consistent with the unit extent of solution. In chemistry, the maximum typically used unit for molarity is the variety of moles according to liter, having the unit symbol mol/L or mol/dm³ in SI unit.

Molarity is the range of moles of solute in line with the liter of answer. for instance, in case you dissolve table salt in water, salt is the solute, and water is the solution. One mole of sodium chloride weighs fifty-eight.44 grams. if you dissolve 58.44 grams of NaCl in one liter of water, you have got a one-molar solution, abbreviated as 1M.

Molarity of KMnO₄ = number of moles/vol of solution in L

            0.100 M     =  0.01928 / volume

volume = 0.1928 L = 192.8 ml

          = 193 ml ( 3 significant figures)

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. Determine the mass percent of sulphur (S) in penicillin (CH₂N₂SO₂) (C = 12, H = 1, N = 14, S = 32,0 = 16).​

Answers

The mass percent of sulfur in the sample  (CH₂N₂SO₂)  is 30.2 %.

The mass percentage is used to explicitly the concentration of a solution while the mass of a solute and the mass of an answer are given:

Calculation:-

given mass of the sample (CH₂N₂SO₂)  is = 106 g

mass of sulfur = 32 g

Mass percentage=Mass of Sulphur / Mass of the compound.

                            = 32g / 106 g × 100

                            = 30.2 %

Mass percent composition is calculated by evaluating the molar mass of detail in a compound to the overall molar mass of the entire compound. The very last calculation yields a percentage this is beneficial while evaluating numerous compounds with one another.

This component enables the showing of the lowest whole range of moles and the relative quantity of atoms of every element in a compound. With the assistance of the empirical system, chemists can also calculate the actual molecular formula. This formulation indicates the exact range of atoms inside the compound.

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A two blocks of copper at different temperatures are placed into contact with each other. The first block is 32.5 g and starts at a temperature of 68.7 oC. The second block is 43.7 g and starts at a temperature of 35.3oC. If the specific heat capacity of copper is 0.385 J/(g oC), what will the final temperature be?

Answers

Here the heat is transferred from the hot body to the colder body thus using the calorimetric equation for each copper block, the final temperature of the system is obtained as 61.6 °C.

What is calorimetry?

Calorimetry is an analytical tool used to determine the heat energy absorbed or released by the system.  The expression relating the heat energy q, mass m and the specific heat capacity c and temperature difference ΔT is written as follows.

q = mc ΔT.

It is given the heat capacity of copper is 0.385 J/°C g. The final temperature for both blocks will be equal and let it be x°C. Now the heat energy of the two blocks are equated as follows:

32.5 g × 0.385  (68.7 - x°C ) = 43.7 g × 0.385  ( x - 35.3°C )

2232.7 - 32.5 x = 43.7 x - 1542

     690.7 = 11.2 x

      x = 61.66 °C .

Hence, the final temperature of the system is 61.66 °C.

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True or False: Coagulation uses an additive to make contaminants stick together.
True
False

Answers

According to the research, the correct answer is True. The statement ''Coagulation uses an additive to make contaminants stick together'' is true.

What is Coagulation?

It is a chemical process of destabilization of the repulsive forces between colloidal particles, forming a gelatinous mass that traps (or binds) particles.

In this sense, to achieve that the repulsive forces disappear and that resistant and large flocs are formed, reagents and additives such as alumina, aluminous salts are used.

Therefore, we can conclude that according to the research, coagulation destabilizes the charges of the particles using additives so that the small suspended particles are able to stick to each other.

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A student is designing an investigation of the distribution of charges in conductors. She will use two conducting spheres mounted on insulating stands in the investigation. The conducting spheres are shown.

Answers

Explanation:

explain how the electron was discovered

Since the charge is evenly distributed between the two spheres, each sphere will have a charge of +10 μC. Therefore, the charge on one of the spheres is +10 μC.

What is distribution of charges in spherical conductors ?

The distribution of charges in spherical conductors refers to the way in which electric charges are distributed on the surface of a conductor that has a spherical shape.

When a conductor is charged, the charges distribute themselves over its surface in such a way that the electric field within the conductor is zero.

The spheres are connected with a wire and allowed to come to the same charge, which means that the total charge is evenly distributed between the two spheres.

The total charge is (-10 μC) + (+30 μC) = +20 μC. Since the charge is evenly distributed between the two spheres, each sphere will have a charge of +10 μC. Therefore, the charge on one of the spheres is +10 μC.

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Your question is incomplete. But your complete question is as follows:

A student is designing an investigation of the distribution of charges in conductors. She will use two conducting spheres mounted on insulating stands in the investigation. The conducting spheres are shown.

One has a charge of -10 μC and the other has a charge of +30 μ C. They are connected with a wire and allowed to come to the same charge.

What is the charge on one of the spheres?

How does heat move? (6.P.3.1)
Group of answer choices

Heat always moves from the warmer substance to the cooler substance.

Heat always moves from the cooler substance to the warmer substance.

Heat always moves from the larger substance to the smaller substance.

Heat always moves from the smaller substance to the bigger substance.

Answers

The Heat move : Heat always moves from the warmer substance to the cooler substance.

The heat always moves from hotter to cooler object. when object are of different temperature comes in contact with the heat will transfer. heat always moves from cooler to hotter. this process is called as conduction. if you will touch something that is hot you will feel the heat. The heat moves in ways : conduction , convention and radiation. These are the three ways of heat transfer from one object to another object.

Thus, The Heat move : Heat always moves from the warmer substance to the cooler substance.

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The food for the plant, the sugar glucose, is written how chemically:

Answers

The food for the plant , the sugar glucose is written chemically as : C₆H₁₂O₆.

The glucose is a simple sugar. the glucose contains six carbon atoms and one aldehyde group. Glucose exist in two form the open chain and the ring structure. The glucose is used by the plants for energy. glucose provide energy to living things. glucose helps plant to live and grow. plants use the process of photosynthesis to convert the water , sunlight and carbon dioxide into oxygen and sugar called glucose. written as : C₆H₁₂O₆.

Thus, The food for the plant , the sugar glucose is written chemically as : C₆H₁₂O₆.

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in the following chemical reaction, which element is the oxidizing agent? 3 sn(no₃)₂(aq) 2 fe(s) → 2 fe(no₃)₃(aq) 3 sn(s)

Answers

The oxidizing agent here is the [tex]Sn^{2+}[/tex]

How do we know the oxidizing agent?

We know that in a chemically reaction, there is the specie that looses electrons in the reaction and there is the specie that gains electrons in the reaction. The specie that looses electrons is the reducing agent while the specie that gains electrons is the oxidizing agent.

Now we can see that the specie that gains electrons and now has a decrease in the oxidation of the specie is the tin atom thus that is the oxidizing agent.

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A 0.470 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A volume of 217 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. The vapor pressure of water at 25 °C is 23.8 Torr. Calculate the molar mass of the metal.

Answers

The molar mass when rected with sulphuric acid to liberate 249 mL of hydrogen gas is 48 g/mol

The volume (V) = 249 mL = 249 / 1000 = 0.249 L

Pressure (P) = 1.0079 – 0.03167 = 0.97623 bar

The temperature (T) = 25.0 °C = 25 + 273 = 298 K

Gas constant (R) = 8.314×10¯² bar.L/Kmol

Number of mole (n) =?

n = PV / RT

n = (0.97623 × 0.249) / (8.314×10¯² × 298)

n = 0.0098 mole

How to determine the mole of the metal

Balanced equation

M(s) + H₂SO₄(aq) —> MSO₄(aq) + H₂(g)

From the balanced equation above,

1 mole of M reacts to produce 1 mole of H₂.

Therefore,

Mole of metal = 0.0098 mole

Mass of metal = 0.539 g

Molar mass is given as mass upon mole

Molar mass of metal = 0.470 / 0.0098

Molar mass of metal = 48 g/mol

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Two electrons in the 1s orbital must have different spin quantum numbers to satisfy.

Answers

The electron pair in the 1s orbital satisfies the exclusion principle because they have opposite spins, or spin quantum numbers that are +1/2 and -1/2, which are different from each other. Compared to electrons in the 1s orbital, those in the 2s level have a different quantum number.

How does the Pauli exclusion principle work?

According to Pauli's Exclusion Principle, no two electrons in the same atom can have values for all four of their quantum numbers that are exactly the same, put  alternatively. There can never be more than two electrons in a single orbital, and they must also have opposing spins.

What is the Pauli exclusion principle, exactly, and how does it work?

According to the Pauli exclusion, no two electrons can have the exact same set of quantum numbers.

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How do specialized brown fat cells take advantage of oxidative phosphorylation to generate heat?.

Answers

Specialized brown fat cells take advantage of oxidative phosphorylation to generate heat as they contain a carrier protein that dissipates the proton gradient across the inner mitochondrial membrane.

oxidative phosphorylation is when in mitochondrion the proton gradient does is the production of ATP from ADP. This depends on the oxidative reaction happening in the mitochondria. During  oxidative phosphorylation electrons  from NADH and FADH₂ combine with oxygen and then releases the energy from the oxidation or reduction reaction that is used to synthesis of ATP from ADP

Thus, Specialized brown fat cells take advantage of oxidative phosphorylation to generate heat as they contain a carrier protein that dissipates the proton gradient across the inner mitochondrial membrane.

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Where would contour farming and terraces be most likely to be found?

Answers

on hilly , mountainous farm land


Farming is an agriculture practice, in which crops are harvested, cultivated, and yielded over a period of time. It can be of several types such as contour, terraces, nomadic, and sedentary farming.
What is Contour Farming?
Contour farming refers to the cultivation and growing of crops in sequential rows. The rows are level around the hill. Contour farming is found in hills and mountainous farmlands. The farming practice is common in European countries.
What is Terrace farming?
Terraces are the farming practice, in which the farmlands are formed by turning hills to form a ridged platform. Terraces are also found in the hilly regions are common in the countries China, Japan, and Southeast Asia.
Thus, contour and terraces farming is the type of agricultural practice done in the hilly and mountainous regions.

on edge 22

What is determined by the distance at which the lowest potential energy is achieved and the distance at which positive charges have the least repulsion?.

Answers

The positive charges in the two nuclei start to repel one another as the atoms get closer to one another, which raises the potential energy. The distance at which the lowest potential energy is attained determines the bond length.

How is bond length influenced by location?

The internuclear distance at which the potential energy minimum occurs dictates the bond length. The equilibrium bond length is a more appropriate term since it reflects the distance at which the two atoms bounce as a result of thermal motion. In general, stronger bonds are formed when bonds are shorter.

Does the potential energy of bonds increase?

When atoms are bound to other atoms, the majority of them achieve a lower potential energy. At this distance, the system's potential energy is supposedly equal to zero.

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how to balance the following precipitation reaction
K3PO4 + Cu(NO3)2

Answers

The balanced equation of the precipitation reaction would be [tex]3Cu(NO_3)_2 + 2K_3PO_4 -- > Cu_3(PO_4)_2 + 6KNO_3[/tex]

What is precipitation?

Precipitation reactions are reactions involving two aqueous salts leading to the production of, at least, one insoluble salt or a precipitate.

In the reaction given, [tex]K_3PO_4[/tex] reacts with [tex]Cu(NO_3)_2[/tex]. The two reactants are soluble and will exchange radicals during the reaction to produce [tex]Cu_3(PO_4)_2[/tex], an insoluble salt or a precipitate, and [tex]KNO_3[/tex], a soluble salt.

In order to balance the equation, it must be made to obey the law of conservation of atoms. According to the law, atoms of elements that participate in chemical reactions may change forms but are always conserved in terms of number.

In other words, the number of atoms of each element in the reactants must be equal to their respective numbers in the products.

Thus, the equation that shows that the precipitation reaction obeys the law of conservation of atoms is [tex]3Cu(NO_3)_2 + 2K_3PO_4 -- > Cu_3(PO_4)_2 + 6KNO_3[/tex]

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An unknown compound has a density in the gas phase of 1.14 g/L at 125 °C and 175 Torr pressure. What is the molar mass of this compound?
a. 21.6 g/mol
b. 162 g/mol
c. 273 g/mol
d.50.8 g/mol
e. 869 g/mol

Answers

21.6 g/mol  is the molar mass of this compound.

p=175 Torr

v= 1

r=0.82

t= 125 °C= 398 K

density= mass/volume

mass=density × 1

mass=1.14 g/L ×1

mass=1.14 g

PV=nRT

n=PV/RT

n=175×1÷0.82×398

n=0.53 mol

moles= given mass/molar mass

molar mass= given mass/moles

molar mass=1.14 /0.53

molar mass=21.6

Mass per mole is a definition of molar mass. In other terms, molar mass is the total mass of all the atoms in a substance that makes up a mole. It is measured in gram-per-mole units.

For elements or molecules, molar mass is displayed. The molar mass is simply the element's mass represented in atomic mass units in the case of single elements or individual atoms. To put it another way, an atom's atomic mass and molar mass are exactly equal. Molar mass can be used to determine a particle's identification because it is equivalent to atomic mass for individual atoms.

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How is a chemical equation similar to a mathematical equation, and how do they model a natural phenomenon?

Answers

The chemical equation similar to a mathematical equation as equal sign means both sides . The differential equation is used as a model a natural phenomenon.

The chemical equations and mathematical equation have lot of common things. The balancing of equation and algebraic equation have similarities. we use differential equation is used as a model  a natural phenomenon. chemical equation like the math's equation must be balanced. some basic concepts of math's are used in chemistry to balance equation.

Thus, The chemical equation similar to a mathematical equation as equal sign means both sides . The differential equation is used as a model a natural phenomenon.

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Answer:

The chemical equation similar to a mathematical equation as equal sign means both sides.

Explanation:

Chemical equations and mathematical equations have a lot in common. The equal sign in a math equation means that both sides, however they're written, are equivalent expressions of the same thing: 2(3) - 4 = 5(2) - 8 ← Try it for yourself. The arrow or arrows in a chemical equation mean the same thing.

which will dissolve faster in a cup of hot tea? a. tablespoon of sugar b. cube of sugar c.2 cubes of sugar

Answers

Tablespoon of sugar will dissolve faster in a cup of hot tea

Generally, a solute dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement. For example, if you add the same amount of sugar to a cup of hot tea and a cup of iced tea, the sugar will dissolve faster in the hot tea.

In the above case we can say that a tablespoon of sugar will dissolve faster  in a cup of hot tea because when we compared table spoon of sugar with cube of sugar the surface area in grounded sugar is more and for cube of sugar the surface area is less and hence will take more time to dissolve.

So we can conclude that tablespoon of sugar will dissolve faster in a hot cup of tea.

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2. Beaker A contains 100 cm³ of 0.02 M NaOH and beaker B contains 200 cm³ of 0.03 M Na₂CO3. A Laboratory Technician decided to mix two solutions into a 500 cm³ beaker C. What is the molarity of the solution in beaker C assuming there was no loss in volume during mixing of two solutions?​

Answers

The molarity of the solution in beaker C is 0.028 M.

The maximum not unusual manner to explicitly answer concentration is molarity (M), that's described as the amount of solute in moles divided with the aid of the extent of solution in liters: M = moles of solute/liters of solution. a solution this is 1.00 molar (written 1.00 M) incorporates 1.00 mole of solute for each liter of solution

Given ;

V = 0.1 L

M=0.02 M

V₂ = 200 cm³ = 0.2 L

M = 0.03 M

M₁V₁ + M₂V₂ = MV

V = M₁V₁ + M₂V₂ / M

  = 0.02*0.1+0.03*0.2*2/0.5

= 0.028 M

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PLEASE HELP 85 POINTS!
Aluminum chloride is a white compound that contains one aluminum atom and three chlorine atoms.
Which model is the best representation of aluminum chloride?
O A.
B.
Al
Cl
Al
Cl
O C.
D.
Cl
Al
Al
Cl

Answers

Answer:

Model B (in image) would the best representation of aluminum chloride.

Explanation:

It's the only model the has three chlorine atoms and one aluminum atom.

Additionally, Cl can only bond once, so it can't be bonded to multiple different atoms. Also, Al needs to have more than one bond to achieve the octet rule.

What is the name of this molecule?

Answers

Based on the IUPAC nomenclature of organic compounds, the name of the molecule is 5-ethyl-3-octenal.

What is the IUPAC nomenclature of compounds?

The IUPAC nomenclature is the naming convention adopted by the International Union of Pure and Applied Chemistry.

In the naming of organic compounds, the name is divided into three parts;

the root name which is the name of the longest straight-chain hydrocarbonthe suffix which is the name of the principal substituent groupthe prefix which is the name of other substituent groups present in the organic compound

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Balance the following equation:

Answers

Answer:

[tex]C_{5} H_{12} + 8O_{2} \\\ - > 5CO_{2} + 6H_{2}O[/tex]

Explanation:

Blank 1: remain blank or put 1

Blank 2: 8

Blank 3: 5

Blank 4: 6

Purpose is to have the same amount of each element on both side of equation

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. The balanced equation is

C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O

What is Balanced equation?

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side.

The unbalanced equation is

C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]CO[tex]_2[/tex]+H[tex]_2[/tex]O

The number of atoms of carbon on reactant side is 5 and on product side it is 1. so to balance it we need to multiply CO[tex]_2[/tex] by 5.

C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+H[tex]_2[/tex]O

The hydrogen atom on reactant side is 12 while on product side it is 2, so multiply H[tex]_2[/tex]O by 6.

C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O

To multiply oxygen we need to multiply O[tex]_2[/tex] by 8.

C[tex]_5[/tex]H[tex]_12[/tex]+8O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O

Therefore, the balanced equation is

C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O

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