For the reaction HCl + NaOH ® NaCl + H2O, how many moles of hydrochloric acid are required to produce 180. g of water?

Answer:

9.9966788 x 10^-1

The excess reagent is FeCl₃ and 0.33 moles of FeCl₃ remains unreacted after igniting 3.00 moles of FeCl₃ with 2.00 moles of O₂ gas.

The balanced chemical equation for the reaction between FeCl₃ and O₂ is:

4 FeCl₃ + 3 O₂ → 2 Fe₂O₃ + 6 Cl₂

From the balanced equation, we can see that for every 4 moles of FeCl₃, we need 3 moles of O₂.

To determine what is the excess reagent and how much of it is left over, we need to calculate the amount of each reagent required for complete reaction:

3.00 moles FeCl₃ × (3 moles O₂/4 moles FeCl₃) = 2.25 moles O₂ required

2.00 moles O₂ × (4 moles FeCl₃/3 moles O₂) = 2.67 moles FeCl₃ required

Since we only have 2.00 moles of O₂ available, this is the limiting reagent and there is not enough O₂ to react completely with all 3.00 moles of FeCl₃. Therefore, FeCl₃ is the excess reagent.

The amount of excess reagent remaining can be calculated by subtracting the amount required for complete reaction from the amount initially present:

Excess FeCl₃ = 3.00 moles - 2.67 moles = 0.33 moles

Therefore, there is an excess of 0.33 moles of FeCl₃ remaining unreacted. There is no excess of O₂ remaining, as we started with less than the amount required for complete reaction.

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When slip occurs in a material, the critical resolved shear stress (CRSS) is used to determine the minimum shear stress required to start the slip.

Given that a tensile stress is applied on a nickel crystal along a 1011 direction, and slip occurs on a (111) plane and in a (101) direction, the critical resolved shear stress will be computed as follows: Calculation for g[000] Since the tensile stress is applied along the 1011 direction, g[000] = 0.Calculation for g[1012]:The direction of slip (101) lies in the (1012) plane. Therefore, g[1012] = 1.Calculation for .

From the direction of the applied tensile stress and the direction of the slip plane, we can use the expression given as o = cas-1 [g [000) + 1012 (1210²+1²) (12+0 24 1²) 2 to determine o. Substituting the values of g[000], g[1012], and other parameters gives us.

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Answer:

C3H8 + 5 O2 ------> 3 CO2 + 4 H2O

Explanation:

Answer:

Mass of MgF₂ formed = 40.5 g

Explanation:

Given data:

Mass of NaF = 55 g

Mass of MgF₂ formed =  ?

Solution:

Chemical equation:

2NaF  +  Mg      →     MgF₂ + 2Na

Number of moles of NaF:

Number of moles = mass/molar mass

Number of moles = 55 g / 41.98 g/mol

Number of moles = 1.3 mol

now we will compare the moles of sodium fluoride with magnesium fluoride.

                     NaF       :          MgF₂

                       2          :             1

                     1.3          :        1/2×1.3 =  0.65 mol

Mass of magnesium fluoride:

Mass = number of moles × molar mass

Mass = 0.65 mol × 62.3 g/mol

Mass = 40.5 g

The answer would be an atom.

Atom : An atom is a tiny piece of a matter that unparalleled defines a chemical element.

An atom comprise of a mid nucleus that is neighbouring by one or more negatively charged electrons. The nucleus is positively charged and consist one or more relatively bulky particles known as protons and neutrons.

It is the littlest unit of an element.

Cannot be made or annul in a chemical reaction.

Atoms of various elements have various masses and chemical attributes.

Atoms merged in the ratio of compact whole numbers to form compounds.

Characteristics of an atom : atomic number, mass number and net charge.

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Answer: Atoms are made of dust because God made us with dust.

Explanation:

Answer:

The extraction is done by electolysis but first the aluminium oxide must be melted so that electricity can pass through it...The use of molten cryolite as a solvent reduces some of the Energy

costs involved in extracting aluminum by allowing the ions in aluminum oxide to move freely at low temperature ..

The volume of chlorine gas required at STP for the complete reaction of 5.02 g of aluminum is 10.71 L.

Calculate the number of moles of aluminum (Al):

moles of Al = mass of Al / molar mass of Al

= 5.02 g / 26.98 g/mol

≈ 0.186 mol

According to the balanced equation, the molar ratio between Al and Cl2 is 2:3. So, the number of moles of Cl2 required is:

moles of Cl2 = (2/3) * moles of Al

= (2/3) * 0.186 mol

≈ 0.124 mol

Use the ideal gas equation to calculate the volume of Cl2 at STP:

V = (n * R * T) / P

= (0.124 mol * 0.0821 L/mol·K * 273.15 K) / 1 atm

≈ 2.54 L

However, the stoichiometry of the balanced equation indicates that 3 moles of Cl2 are required to react with 2 moles of Al. So, the required volume of Cl2 is:

V = (2/3) * 2.54 L

≈ 1.69 L

Therefore, the volume of chlorine gas, measured at STP, necessary for the complete reaction of 5.02 g of aluminum is approximately 1.69 L.

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Answer: a vascular plant and have seeds

Answer:

A  and C

Explanation:

The number of buckets we need to separate these chemicals is 3.

Intermolecular force of the attraction is defined as the attraction by which two atoms or two molecules combine to form a molecule or matter. This force is basically attractive in nature. Intermolecular forces are the forces of attraction or repulsion which acts between neighboring particles. It acts between atom and ions also. The intermolecular force usually varies for solid, liquid and gaseous matter.

Here, C₂H₆ have London dispersion forces

CH₃F have Dipole-Dipole forces

CH₄ have London dispersion forces

NH₃ have hydrogen bonding

Hence, in order to separate these chemicals we need 3 buckets (different kinds of imf).

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Answer:

A combination reaction

Explanation:

The chemical reaction between ammonia and hydrochloric acid as shown below:

         NH₃  +  HCl →  NH₄Cl

is a combination reaction.

In a combination reaction, two compounds combines together to give one compound.

A combination reaction is also known as a synthesis reaction.

A single product forms from tow or more reactants.

The driving force for such reaction is the large and negative heat of formation of the product.

The enamine product formed by the reaction between cyclohexanone and pyrrolidine can be represented by the following structural formula: Enamines are a class of organic compounds that are formed by the reaction of a primary amine and a carbonyl compound.

The amine group in the primary amine reacts with the carbonyl group in the carbonyl compound to form a double bond (C=N). This double bond is referred to as an imine bond. The enamine formed can be considered as a resonance hybrid of the two isomeric structures. The enamine product formed in the reaction between cyclohexanone and pyrrolidine has a five-membered ring (pyrrolidine) and a six-membered ring (cyclohexanone). The nitrogen atom in the pyrrolidine ring is attached to the carbonyl carbon atom of the cyclohexanone ring. The resulting enamine has a double bond (C=N) between the carbon atom of the cyclohexanone ring and the nitrogen atom of the pyrrolidine ring.

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Answer:

55.3 = 328.45k

255 = 18.15°c

447 = 173.85°c

-14 = 14k

Answer:

What 3 factors influence the amount of thermal energy in an object, and how do they each affect it? Mass, temperature, and phase. More mass, more Thermal Energy. Higher temperature, more Thermal Energy.

ASAP=abbreviation. As soon as possible. 'fill in your form and send it to us ASAP' More example sentences.

The pH of 0.1 M ethanol is higher than the pH of 0.1 M acetic acid is because ethanol is a neutral molecule while acetic acid is a weak acid.

The pH of 0.1 M ethanol is higher than the pH of 0.1 M acetic acid because ethanol is a neutral molecule and does not donate or accept protons, while acetic acid is a weak acid that can donate a proton to water, creating hydronium ions (H₃O⁺) and decreasing the pH.

Here are the structures of ethanol and acetic acid to support this explanation:

Ethanol (CH₃CH₂OH):

   H H  

    |   |

H-C-C-OH

    |   |

   H H

Acetic Acid (CH₃COOH):
   H O
    |   ||
H-C-C-O-H
    |
   H

In acetic acid, the carboxylic acid group (-COOH) can donate a proton (H⁺) to water, which increases the concentration of hydronium ions (H₃O⁺) in the solution, leading to a lower pH:

CH₃COOH + H₂O → CH₃COO⁻ + H₃O⁺

Ethanol, on the other hand, does not have an acidic hydrogen and will not donate protons to water, so its pH remains neutral (pH around 7).

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Yes, a miscibility gap exists for a mixture of water and 1-butanol at 928C. The range of compositions over which this gap exists is between the eutectic point and the upper cloud point.

The eutectic point is the composition where the two components form two liquid phases, and the upper cloud point is the composition where the two components form a single liquid phase.

The van Laar parameters for this system (L12) indicate the degree to which changes in temperature, pressure, and composition affect the relative solubility of the two components.

For a mixture of 1-butanol and water at 928C, the relative solubility of the two components decreases as the composition deviates from the eutectic point, resulting in a miscibility gap. The range of compositions over which this gap exists is determined by the van Laar parameters.

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Answer:

If it's multiple choice it's 2 and 3, if not I think the best answer is 2, but I'm not exactly sure.

Answer: The molarity of the diluted solution be 0.10 M

Explanation:

According to the dilution law,

\(C_1V_1=C_2V_2\)

where,

\(C_1\) = concentration of concentrated solution = 0.15 M

\(V_1\) = volume of concentrated solution = 100 ml

\(C_2\) = concentration of diluted solution= ?

\(V_2\) = volume of diluted solution= 150 ml

Putting the values we get:

\(0.15\times 100=M_2\times 150\)

\(M_2=0.10M\)

Thus the molarity of the diluted solution be 0.10 M

When cations and anions meet, they B. form ionic bonds.

This is because cations are positively charged ions and anions are negatively charged ions. When they come together, they form an ionic bond, which is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

This is different from a covalent bond, which is formed when atoms share electrons to form molecules.

Therefore, the correct answer is B. form ionic bonds.

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Answer:

Synthesis is the Chemical reaction

F is the most electronegative atom on the Periodic Table, and electronegativities rise from the bottom to the top of the Group.

In comparison to water, the halogens are substantially more soluble in organic solvents like hexane. Since neither hexane nor the halogens are polar, van der Waals dispersion forces are the only intermolecular interactions acting between them.

The capacity of an atom to attract electrons to itself is known as electronegativity. Halogens have a strong attraction to electrons and hence have high electronegativity values because they only require one electron to complete an octet.

Although polar by nature, alkyl halides are very insoluble in water.

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Answer:

for pH 13 it = strong based the ph 2 is= weak acid

Explanation:

The option that can lead to deviations from Beer's law at constant path length is option A.

Using monochromatic radiation All radiation that was not absorbed by his sample when stray light reaches the detector is transmitted to the detector.

All of the above factors can lead to deviations from Beer's Law if the path length is constant. Optical pathlength refers to the distance that light travels through a sample and is usually kept constant in spectrophotometric experiments in order to accurately measure the sample's absorbance.

Therefore, unless monochromatic radiation is used, the absorbance of the sample may not accurately reflect the concentration of the solute, as different wavelengths of light may be absorbed differently.

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Answer:

stars

earth isn't made of gas. (and you can always see it)

moon us not gas, or give off heat

sun is only visible during the day

The observation tool atom that allows Shauna Doctor to monitor her blood circulation is a pulse oximeter.

A pulse oximeter is a non-invasive medical tool used to measure the amount of oxygen present in a person's blood. It is commonly clipped to the fingertip of a patient. Shauna Doctor can monitor her blood circulation using the pulse oximeter as it measures the oxygen saturation levels and pulse rate.

The pulse oximeter can detect changes in blood flow before the patient begins to experience any physical symptoms. It is a valuable tool used by medical professionals to identify and manage different medical conditions.

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