If 8 moles of magnesium chloride react with enough aluminum, how many moles
of aluminum chloride are produced?

Answer:

Enclosed gas.

Explanation:

Answer:

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Answer:

[tex]$CF_3CO_2H> CHF_2CO_2H>CH_2FCO_2H>CH_3CO_2H$[/tex]

Explanation:

Florine has the highest electronegativity and it thus pulls the element of [tex]$OH^-[/tex] groups in the COOH group towards itself, making it relatively easy to loose the proton of the carboxyl group.

       F     O

       ↑     ||

 F← C ← C ← O - H             ,  Here three Florine withdraw

       ↓

       F

        F     O

       ↑     ||

 F← C ← C - O  H             ,  Here two Florine withdraw

       ↓

       H

        F   O

        |     ||

 H - C - C - OH             ,  Here one Florine withdraw

       ↓

       H

       H   O

        |     ||

 H - C - C - OH             ,  Here no Florine withdraw

        |

       H

Those substances which release H+ ion when mixed in the solution is called acid.

The strength of the acid depends on the following:-

The lewis structure state and define the number of electrons in the outermost shell of the electrons and help us to find the valency.

According to the question, we have to find the weakest carboxylic acid. Therefore the sequence are in increasing order and it is as follows:-

[tex]CF_3Co_2H[/tex]>[tex]CHF_2CO_2H[/tex]>[tex]CH_2FCO_2H>CH_3CO_2H[/tex]

This is the increasing order of the compounds.

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Answer: The rate of the reaction is [tex]2.36\times 10^{-4}Ms^{-1}[/tex]

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

[tex]OCl^-+I^-\rightarrow OI^-+Cl^-[/tex]

[tex]Rate=k[OCl^-]^m[I^-]^n[/tex]

where m = n = 1

[tex]Rate=78.6M^{-1}s^{-1}\times [1.14\times 10^{-3}M]^1\times [2.64\times 10^{-3}M]^1=2.36\times 10^{-4}Ms^{-1}[/tex]

The rate of the reaction is [tex]2.36\times 10^{-4}Ms^{-1}[/tex]

Answer:

The distance that is covered by the wave in one second is called​ frequency.

Explanation:

Answer:

1) NO2

2) 49.4%

Explanation:

Answer:

I apologize that I'm late and all But your answer is B. Energy Transfer.

Explanation:

The waves transfer energy to the sand for example.

Answer:

144 g of H₂O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

Next, we shall determine the mass of CH₄ that reacted and the mass of H₂O produced from the balanced equation. This can be obtained as follow:

Molar mass of CH₄ = 12 + (4×1)

= 12 + 4 = 16 g/mol

Mass of CH₄ from the balanced equation = 1 × 16 = 16 g

Molar mass of H₂O = (2×1) + 16

= 2 + 16 = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY:

From the balanced equation above,

16 g of CH₄ reacted to produce 36 g of H₂O.

Finally, we shall determine the mass of H₂O produced by the reaction of 64 g of CH₄. This can be obtained as follow:

From the balanced equation above,

16 g of CH₄ reacted to produce 36 g of H₂O.

Therefore, 64 g of CH₄ will react to produce = (64 × 36)/16 = 144 g of H₂O.

Thus, 144 g of H₂O were obtained from the reaction.

Answer:

This is a physical test. A chemical test for starch is to add iodine solution (yellow/brown) and look for a colour change. In the presence of starch, iodine turns a blue/black colour. ... Benedict's reagent will give a positive test result for glucose but not for starch.

Explanation:

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Answer:Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil.

Explanation:This makes a linear triiodide ion complex with is soluble that slips into the coil of the starch causing an intense blue-black colo

Answer:

Electromagnet creates electricity.

Explanation:

Answer:it would be f

Explanation:

Answer: The final pressure is 0.81 kPa

Explanation:

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 0.58 kPa

[tex]P_2[/tex] = final pressure of gas = ?

[tex]V_1[/tex] = initial volume of gas = v

[tex]V_2[/tex] = final volume of gas = [tex]v-\frac{40}{100}\times v=0.6v[/tex]

[tex]T_1[/tex] = initial temperature of gas = [tex]25^0C=(25+273)K=298K[/tex]

[tex]T_2[/tex] = final temperature of gas = [tex]-22^0C=(-22+273)K=251K[/tex]

Now put all the given values in the above equation, we get:

[tex]\frac{0.58\times v}{298}=\frac{P_2\times 0.6v}{251}[/tex]

[tex]P_2=0.81kPa[/tex]

The final pressure is 0.81 kPa

Cars rust because when metal comes into contact with water or some sort of water form, it will make the surface wet. If the metal is wet for too long, it will start to soak up the water, therefore making it rusty. The salt will also rust a car. It does this because the mix of carbon dioxide and oxygen in the salt will eat away at the car, making it rust faster. Hope this helps!

Answer:

0.056 moles air

Explanation:

P·V = n·R·T => n = P·V/R·T

P = 750 Torr = 750 mmHg = (750mm/760mm/atm) = 0.9868 Atm

V = 1.35 Liters

R = 0.08206 L·atm/mole·K

T = 17°C = (17 + 273) K = 290K

n = (0.9868atm)(1.35L)/(0.08206L·atm/mole·K)(290K) = 0.056 moles air

Answer:

first part is C

.056 moles

third part is B

Last is 932ml

Explanation:

Answer:

nitrogen

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.

Explanation:

Answer:

a) 5.6 L

Explanation:

Step 1: Given data

Atoms of helium: 1.5 × 10²³ atoms

Conditions: Standard temperature (273.15 K) and pressure (1 atm)

Step 2: Calculate the moles corresponding to 1.5 × 10²³ atoms

To convert atoms to moles, we will use Avogadro's number: there are 6.02 × 10²³ atoms of helium in 1 mole of atoms of helium.

1.5 × 10²³ atoms × 1 mol/6.02 × 10²³ atoms = 0.25 mol

Step 3: Calculate the volume of 0.25 moles of He at STP

At STP, 1 mole of helium occupies 22.4 L.

0.25 mol × 22.4 L/1 mol = 5.6 L

Answer:

The concentration of the original hydrochloric acid solution is - 0.1856 M

Explanation:

Lets calculate-:

Neutralization reaction follows dilute principle

   [tex](N_1)(V_1)=(N_2)(V_2)[/tex] For titration between NaOH and HCl

  [tex](M_1)(V_1)_H_C_l=(M_2)(V_2)_N_a_O_H[/tex]

Putting the given values ,

    [tex]M_1\times 20.06ml=0.149M\times25.0ml[/tex]

       [tex]M_1_H_C_l=\frac{0.149\times25.0}{20.06}[/tex]

            = 0.1856 M

Hence , the concentration of hydrochloric acid solution is 0.1856 M.

Answer:

48.8%

Explanation:

The reaction has a 1:1 mole ratio so;

Number of moles of benzoic acid reacted = mass/molar mass = 3.8 g/122.12 g/mol = 0.03 moles

So;

0.03 moles of methyl benzoate is formed in the reaction

Mass of methyl benzoate formed = 0.03 moles * 136.15 g/mol = 4.1 g

percent yield = actual yield/theoretical yield * 100/1

percent yield = 2.0 g/4.1 g * 100 = 48.8%

Answer:

45g

Explanation:

Use the Mole = Mass x Mr equation:

Rearrange the above equation to find mass,

Mass = 2.5 moles x 18 (Mr of H₂O) = 45g

Therefore answer is 45g

Answer:

Given

number of moles (n) =2 . 5 mol

R.tc maas of H2O (m) =?

sln

H2O =(1x2+16)

=18g/mol

n=m/mr

m=nxmr

m=2.5x18

m=45g

mass of water is 45g

Explanation:

Stop cheating and use your brains kiddos

Answer:

Molar mass = (24.31 + 2 × 35.45) = 95.21 g mol–1 i.e. 95.21 g of MgCl2 is exactly 1 mole.

Explanation:

Answer:

acceleration

Explanation:

Answer:

1.511g/mL

Explanation:

To find density, we can use the equation

[tex]d=\frac{m}{V}[/tex]

We have V (40mL) To find m (mass), we must subtract as such:

[tex]103.36-42.91=60.45[/tex]

60.45 grams is the mass of the unknown liquid.

Now, we plug the values we have into the density equation.

[tex]d=\frac{60.45g}{40.00mL} \\\\ d=1.511\frac{g}{mL}[/tex]

The density of the unknown liquid is 1.51 g/mL

Density can be defined as the mass of an object per unit volume of the object.

[tex]Density = \frac{mass}{volume}[/tex]

To solve the question given above, we'll begin by calculating the mass of the unknown liquid. This can be obtained as follow:

Mass of empty cylinder = 42.91 g

Cylinder + unknown liquid = 103.26 g

Mass of unknown liquid = (Cylinder + unknown liquid) – (Mass of empty cylinder)

Mass of unknown liquid = 103.26 – 42.91

Finally, we shall determine the density of the unknown liquid. This can be obtained as follow:

Mass of unknown liquid = 60.35 g

Volume of unknown liquid = 40 mL

Density = mass / volume

Density = 60.35 / 40

Therefore, the density of the unknown liquid is 1.51 g/mL

Learn more: https://brainly.com/question/17262276

Answer:

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Answer:

1. The second option

Explanation: