Question 9 (1 point)
For the following hypothetical reaction:
3A + 2B --> 60
How many moles of C can you produce with 4 moles of A and excess B?
(Enter just the number; not the number and units)
Your Answer:
Answer

Question 9 (1 Point)For The Following Hypothetical Reaction:3A + 2B --> 60How Many Moles Of C Can

Answers

Answer 1

Answer:

8 moles of C

Explanation:

From the question given above, the following equation was obtained:

3A + 2B —> 6C

From the equation above,

3 moles of A reacted to produce 6 moles of C.

Thus, the number of mole of C produced by reacting 4 moles of A can be obtained as follow:

From the equation above,

3 moles of A reacted to produce 6 moles of C.

Therefore, 4 moles of C will react to produce = (4 × 6)/3 = 8 moles of C

Thus, 8 moles of C can be obtained from the reaction of 4 moles of A with excess B


Related Questions

Which of these describes a chemical property? A. the color of the substance B. the hardness of the substance C.how the substance behaves in the presence of an acid D. how the substance behaves in the presence of a magnet​

Answers

Answer:

C. How the substance behaves in the presence of an acid.

Explanation:

Have a great day

Chemical properties can be defined as the ones that describe a substance's ability to undergo chemical changes.

Physical properties can be defined as the ones that are measured and observed without actually changing the substance's identity.

Among the given options, the color, the hardness, and the behavior of a substance in the presence of a magnet are all examples of physical properties.

However, the behavior of a substance in the presence of an acid is an example of chemical property.

Hence, the correct answer is option c.

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A 31.4 mL sample of nitrogen gas was collected over water at 23.7°C and a total pressure of 706 torr. What mass of nitrogen gas was collected

Answers

Answer:

[tex]m=0.0325g[/tex]

Explanation:

Hello!

In this case, since the collection of gases over at certain conditions implies the usage of the ideal gas equation and computation of the pressure of the gas by subtracting the vapor pressure of water (21.7 torr at 23.7 °C) to the total pressure as shown below:

[tex]p_N=706-21.7=684.3torr =0.900atm[/tex]

Next step is to compute the moles of nitrogen at the given conditions:

[tex]n=\frac{PV}{RT}=\frac{0.900atm*0.0314L}{0.08206\frac{atm*L}{mol*K}*296.85K} \\\\n=0.00116mol[/tex]

Final step is to compute the mass by knowing that gaseous nitrogen has a molar mass of 28.02 g/mol:

[tex]m=0.00116mol*\frac{28.02g}{1mol} \\\\m=0.0325g[/tex]

Regards!

The mass of nitrogen gas that was collected is 0.0336 grams.

Given the following data:

Volume of nitrogen gas = 31.4 mLTemperature = 23.7°C to K = 296.7 KelvinPressure = 706 torr to atm = 0.93 atm.

Scientific data:

Ideal gas constant, R = 0.0821 L⋅atm/mol⋅KMolar mass of nitrogen gas = 28.02 g/mol

To determine the mass of nitrogen gas that was collected:

First of all, we would calculate the number of moles of nitrogen gas used by using the ideal gas law equation:

[tex]n = \frac{PV}{RT}[/tex]

Where;

P is the pressure. V is the volume. n is the number of moles of gas. R is the ideal gas constant. T is the temperature.

Substituting the given parameters into the formula, we have;

[tex]n = \frac{0.93 \times 0.0314}{0.0821 \times 296.7}\\\\n=\frac{0.0292}{24.36}[/tex]

n = 0.001199 moles

For the mass of nitrogen gas:

[tex]Mass = n \times molar \;mass\\\\Mass = 0.001199 \times 28.02[/tex]

Mass = 0.0336 grams

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Resonance structures differ by ________.
A. placement of atoms only
B. placement of electrons only
C. number of atoms only
D. number of electrons only
E. number and placement of electrons

Answers

Answer:

b)

Explanation:

Resonance structure differ by placement of electrons only.

I hope you got the answer

‍♂️

Discuss the differences expected in the IR spectra of methyl benzoate vs methyl m-nitrobenzoate.

Answers

Answer:

im sorry but i havent reached that topic as of yet

Explanation:

Which of these is purposefully changed during a scientific investigation?

Answers

Answer:

The independent variable is the variable that is deliberately changed by the scientist. The dependent variable is the one observed during the experiment. The dependent variable is the data we collect during the experiment.

The transition metals are all group together on the periodic table all the following explains this grouping except?
A) They all have good conductivity
B) they are not found in nature as pure elements
C)they are used in construction and electrical applications
D) they are less reactive than elements in groups 1 and 2

Answers

Answer : B.

Because All elements in the periodic table are all pure elements

#ScienceIsLife

A story to describe the motion on the graph

Answers

which graph...............?

how many grams of oxygen would we need to consume to produce 13.9 grams of MgO​

Answers

Answer:

5.56g

Explanation:

Expression of the equation:

                      2Mg  +  O₂  →  2MgO

Mass of MgO = 13.9g

Solution:

         2Mg  +  O₂  →  2MgO

To solve this problem, let us find the number of moles of MgO from the given mas;

  Number of moles  = [tex]\frac{mass}{molar mass}[/tex]  

  molar mass of MgO  = 24 + 16  = 40g/mol

  Number of moles  = [tex]\frac{13.9}{40}[/tex]   = 0.35mole

Now,

           2 moles of MgO is produced from 1 mole of oxygen gas

          0.35 mole of MgO will be produced from [tex]\frac{0.35}{2}[/tex] mole of oxygen gas

                                                                               = 0.17mole of oxygen gas

So;

 Mass of oxygen gas  =  number of moles x molar mass

      Molar mass of O₂  = 2(16) = 32g/mol

  Mass of oxygen gas  = 0.17 x 32  = 5.56g

Bacteria reproduce by invading a host cell. *

Is it true or false

Answers

Answer:

i think its true but nevermind its true✌

how does fire start​

Answers

You light it on fire

A solution of transferrin was titrated with a standard solution of Fe3+. The blank absorbance was 0.04, and the absorbance of 10.00 mL of the transferrin solution measured after adding 6.00 mL of titrant was 0.65. Calculate the corrected absorbance that should be plotted.

Answers

Answer:

The correct answer is 0.61.

Explanation:

Based on the given information, a transferrin solution was titrated with a standard ferric solution. The blank absorbance was 0.04 and the absorbance of 10 ml solution of transferrin post supplementation of 6 ml titrant came out to be 0.65. The corrected optical density or absorbance can be determined by using the formula,

Corrected OD = Measured OD - Blank or Reference OD

Now putting the values we get,

Corrected OD = 0.65 - 0.04

Corrected OD = 0.61

Na2CO3 + H2SO4 Na2SO4 + CO2 + H2O
=

Write the word equation for this reaction.

Answers

Answer:

that is an invalid question

The word equation for this reaction is:

Sodium carbonate + Sulfuric acid → Sodium sulfate + Carbon dioxide + Water.

The given chemical equation represents a chemical reaction between sodium carbonate (Na₂CO₃) and sulfuric acid (H₂SO₄). When these two substances react, they undergo a chemical change and produce different compounds. The reaction results in the formation of sodium sulfate (Na₂SO₄), carbon dioxide (CO₂), and water (H₂O).

In a word equation, the chemical reaction is described using the names of the substances involved rather than their chemical formulas. Hence, the word equation for this reaction would be:

Sodium carbonate + Sulfuric acid → Sodium sulfate + Carbon dioxide + Water.

This word equation provides a simple and concise description of the reactants and products involved in the chemical reaction, allowing for a better understanding of the overall transformation of substances that occurs during the reaction.

To learn more about reactions, here

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#SPJ2

Formula for cesium iodide

Answers

Answer:

Csl

Explanation:

Caesium iodide or cesium iodide is the ionic compound of caesium and iodine. It is often used as the input phosphor of an X-ray image intensifier tube found in fluoroscopy equipment. Caesium iodide photocathodes are highly efficient at extreme ultraviolet wavelengths.

- Wikipedia

What do the flames below the pot
represent

Answers

Answer:

That it is cooking the food or whatever you have in the pot.

Explanation:

We are learning this in science.

Which of the following is NOT something that electromagnetic waves and mechanical waves have in common?

A.Both can transmit energy through a medium.
B.Both involve the repeated vibrations of particles
.C.Neither of the waves can move matter.
D.In both, vibrations occur in a parallel direction to the direction of the wave.

Answers

Answer:

D. In both, vibrations occur in a parallel direction to the direction of the wave.

Explanation:

It is not true that in both mechanical and electromagnetic waves, vibrations occur in  parallel direction to the direction of the wave.

As with all waves, they are disturbances that transfers energy without moving the materials of the medium.

Electromagnetic waves have only one way of propagation which is a vibration in both parallel and longitudinal direction.Mechanical waves can be propagated either in a parallel direction or longitudinal direction and not both.

During a tug of war competition neither team was able to gain an advantage which of the following explains the force is this situation

A. The forces are balanced
B.the forces are overcome by air friction
C.the mass of the rope cancels is the forces being exerted on it
D.the forces are unbalanced

Answers

Answer:

b i did the test

Explanation:

What is the carbon cycle? ASAP

Answers

Answer:

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone

The Carbon Cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone. Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to make Earth capable of sustaining life.

It describes the movement of carbon as it is recycled and reused throughout the biosphere, as well as long-term processes of carbon sequestration to and release from carbon sinks.

What is the pH of an aqueous solution made by combining 35.01 mL of a 0.3791 M ammonium chloride with 40.07 mL of a 0.3542 M solution of ammonia to which 3.112 mL of a 0.0896 M solution of HCI was added?

Answers

Answer:

pH = 9.25

Explanation:

Using H-H equation:

pH = pKa + log [A⁻] / [HA]

Where pH is pH of the buffer

pKa is pKa of the weak acid: 9.24

[A⁻] could be taken as moles of the conjugate base: Moles NH₃

[HA] moles of the weak acid: NH₄⁺

Initial moles of NH₃:

40.07mL = 0.04007L * (0.3542mol / L) = 0.01419mol

Initial moles NH₄⁺:

0.03501L * (0.3791mol / L) = 0.01327 mol

The HCl added reacts with NH₃ producing NH₄⁺:

HCl + NH₃ → NH₄⁺ + Cl⁻

Moles of HCl:

3.112x10⁻³L * (0.0896mol / L) = 0.00028 moles

That means moles of NH₃ and NH₄⁺ after the addition of HCl are:

NH₄⁺: 0.01327moles + 0.00028moles = 0.01355 moles

NH₃: 0.01419mol - 0.00028 moles = 0.01391 moles

pH of the buffer is:

pH = pKa + log [A⁻] / [HA]

pH = 9.24 + log [0.01391 moles] / [0.01355 moles]

pH = 9.25

What is the numerical value for the standard cell potential of the following reaction?
2Cr2(aq) + 3Cu(s) → 2Cro) + 3Cu2+ (aq)
a) -1.25 V
b) -0.57 V
c) +0.57 V
d) +1.25 V

Answers

The answer is D
Hope this help!

Which of the following would lose heat the fastest?
15 grams of water

200 grams of water

1000 grams of water

500 grams of water

Answers

Answer:

15 grams of water

Explanation:

15 grams of water of water would lose heat the faster compared to higher masses of water.

Water generally is a poor conductor heat.

To heat up a unit of water, significant amount of energy must be added to the body of water. With time, the body continues to increase in temperature. A 500g mass of water will take more time to lose heat.

Joints in train tracks are designed with extra space to allow for __________________ in hot weather.

Answers

Join in tracks are designed with extra space to allow for friction in hot weather

Answer:

Joints in train tracks are designed with extra space to allow for expansion and contraction of the track material in hot weather.

Calculate the mass (in kg) of 4.87 x 10 25 atoms of Zn

Answers

Answer:

5.29kg

Explanation:

5.29kg

The mass of 4.87×10²⁵ atoms of Zn is 5.29 Kg

From Avogadro's hypothesis,

6.02×10²³ atoms = 1 mole of Zn

Recall,

1 mole of Zn = 65.38 g

Converting 65.38 g to Kilogram (Kg), we have:

1000 g = 1 Kg

Therefore,

65.38 g = 65.38 / 1000

65.38 g = 0.06538 Kg

Thus, we can say that,

6.02×10²³ atoms = 0.06538 Kg of Zn

Finally, we shall determine the mass of Zn that contains 4.87×10²⁵ atoms. This can be obtained as follow:

6.02×10²³ atoms = 0.06538 Kg of Zn

4.87×10²⁵ atoms = [tex]\frac{4.87*10^{25} * 0.06538}{6.02*10^{23} } \\\\[/tex]

4.87×10²⁵ atoms = 5.29 Kg of Zn

Therefore, the mass of 4.87×10²⁵ atoms of Zn is 5.29 Kg

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At higher temperatures, air can hold __vapor as compared to air at lower?

Answers

Answer:

water vapor

Explanation:

the the answer is water vapor

Calculate the work (w) and ΔEo, in kJ, at 298 K and 1 atm pressure, for the combustion of one mole of C4H10 (g). First write and balance the equation. The products will be CO2 (g) and H2O (g)
The value of ΔHo for this reaction is -2658.3 kJ/mol

Answers

Answer:

Explanation:

2C₄H₁₀ + 13O₂ = 8 CO₂ + 10H₂O

Change in number of moles Δn = 18 - 15 = + 3 moles .

ΔHo = -2658.3 kJ/mol.

ΔHo = ΔEo+ Δn RT

Δn = 3

For one mole Δn = 1.5

ΔHo = ΔEo+ W

W = Δn RT

= 1.5 x 8.31 x 298

= 3714.5 J

= 3.7 kJ /mole

ΔHo = ΔEo+ W

ΔEo =  ΔHo -  W

= -2658.3 - 3.7  kJ

= - 2662 kJ .

(a) The work done for the combustion of 1 mole of methane is 3,714.5 J.

(b) The change in the energy of the given system is -3,991.2 kJ.

The balanced chemical reaction of the given compounds is written as follows;

[tex]2C_4H_{10} \ + \ 13O_2 \ -->\ 8CO_2 \ + \ 10H_2 O[/tex]

The change in number of moles;

[tex]\Delta n = 18 - 15 = 3[/tex]

The work done for the combustion of 1 mole of methane is calculated as follows;

[tex]W = \frac{\Delta n}{2} RT\\\\W = \frac{3}{2} \times 8.31 \times 298\\\\W = 3,714.6 \ J[/tex]

The energy change is calculated as follows;

[tex]\Delta E_0 = \Delta H_o - W\\\\\Delta E_0 = (\frac{3 \ mole}{2} \times-2658.3 \ kJ/mol) - 3.715 \ kJ\\\\\Delta E_0 = -3,991.2 \ kJ[/tex]

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As the thermal energy of matter increases, its particles usually spread out, causing

Answers

Answer:

As the thermal energy of matter increases, its particles usually spread out, causing the substance to expand.

Explanation:

i have a book about this stuff

As the thermal energy of matter increases, its particles usually spread out,

causing the substance to expand.

What is Thermal energy?

Thermal energy is the energy which is measured as a result of its heat

content. This is usually as a result of the increase in temperature of the

substance involved.

Increase in temperature leads to an increase in thermal energy. This leads

to the particles spreading out and the substance expanding as a result of

the atoms being loosely held together.

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What is the concentration (M) of a NaCl solution prepared by dissolving 9.1 g of NaCl in sufficient water to give 375 mL of solution?

Answers

Answer:

d

Explanation:

The reaction of 11.9 g of CHCl3 with excess chlorine produced 11 grams of CCl4, carbon tetrachloride. What is the percent yield

Answers

This is your perfect answer

Find the mass of benzene (C6H6) required to produce 2.66 g of carbon dioxide gas from the reaction described by the following equation:
2C6H6 + 15O2 → 6H2O + 12CO2

Answers

Answer:

Mass of benzene required = 0.78 g

Explanation:

Given data:

Mass of CO₂ produced = 2.66 g

Mass of benzene required = ?

Solution:

Chemical equation:

2C₆H₆ + 15O₂       →    6H₂O + 12CO₂

Number of moles of CO₂:

Number of moles = mass/molar mass

Number of moles = 2.66 g/ 44 g/mol

Number of moles = 0.06 mol

Now we will compare the moles of CO₂ with C₆H₆.

                        CO₂       :        C₆H₆

                            12        :          2

                          0.06      :        2/12×0.06=0.01 mol

Mass of benzene required:

Mass = number of moles × molar mass

Mass = 0.01 mol × 78.11 g/mol

Mass = 0.78 g

Which type of bond stores the most energy

Answers

Answer:

I'm not sure which bond stores the most energy but the ionic bond is stronger than the covalent bond.

Explanation:

which of the following elements has the smallest atomic radius?

Answers

Answer:

helium is the smallest element and francium is the largest

Answer:

K+ is the right answer

Explanation:

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