a solution of a compound in water conducts electricity, turns litmus red, and has a sour taste. what compound might be in the solution?

A sample of propane, \(C_{3}H_{8}\), containing 11.2 moles of carbon atoms has a total of 41.066 moles of atoms.

To know the total moles of atoms in a sample of propane,  \(C_{3}H_{8}\), containing 11.2 moles of carbon atoms.

Step 1: Determine the moles of carbon and hydrogen in propane.
The chemical formula for propane is  \(C_{3}H_{8}\). This means there are 3 moles of carbon atoms and 8 moles of hydrogen atoms in 1 mole of propane.

Step 2: Calculate the moles of propane.
Since the sample contains 11.2 moles of carbon atoms and there are 3 moles of carbon atoms in 1 mole of propane, divide the moles of carbon by 3 to find the moles of propane.
11.2 moles of C / 3 moles of C per mole of propane = 3.7333 moles of propane

Step 3: Calculate the total moles of atoms in the sample.
Now that we know there are 3.7333 moles of propane, we can calculate the total moles of atoms in the sample. For each mole of propane, there are 3 moles of carbon and 8 moles of hydrogen, totaling 11 moles of atoms.
3.7333 moles of propane * 11 moles of atoms per mole of propane = 41.066 moles of atoms

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Answer:

NaCl > KBr > KCl

Explanation:

compound : NaCl. KBr. KCl

Molar mass : 23+35.5. 39+80. 39+127

= 58.5. 119. 166

Number of : 15/58.5. 15/119. 15/166

moles

= 0.256. 0.126. 0.090

NaCl > KBr > KCl

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To find the empirical formula of the compound, we need to determine the ratio of carbon, hydrogen, and oxygen atoms based on the given masses of CO2 and H2O produced during combustion.

First, we calculate the number of moles of CO2 and H2O produced using their respective molar masses. Then, we determine the moles of carbon and hydrogen in the compound by converting the masses of CO2 and H2O to moles.

Since CO2 contains one carbon atom and H2O contains two hydrogen atoms, we can determine the moles of carbon and hydrogen in the original compound. Lastly, we find the moles of oxygen by subtracting the moles of carbon and hydrogen from the total moles of the compound.

By dividing the moles of each element by the smallest number of moles obtained, we obtain the empirical formula of the compound.

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Answer:

6.17 L

Explanation:

Answer:

nitrogen

nitrogen oxide

zincflorite

?

potassium oxide

Answer:

Amino Acid

Explanation:  

It's part of the Amino group, which are substituted hydrocarbons.

When NH₂  and  COOH  replaces hydrogens on the same carbon atom in a molecule, an Amino acid is formed.

What group is a COOH?

COOH : a Carboxylic Acid group!

3. Environmental chemistry

4. Biochemistry

5. Inorganic Chemistry

6. Organic chemistry

The Highly Soluble : NaCl, KOH, CH₃CH₂OH, CH₃COOH, CH₃OH, Na₂SO₄, KNO₃

The Insoluble: C₆H₆, C₆H₁₄, CCl₄, CHCl₃, CH₂Cl₂, CH₃(CH₂)₅OH

1) NaCl : NaCl is a chloride and NaCl is highly soluble.

2)  CH₃C l: This compound is an organic. The electronegativity between C and Cl is high, and is polar. Because water is also polar, it is highly soluble.

3) CH₃OH:  Alcohols are hydrocarbon are is highly soluble in water because of hydrogen bonding.

4) KOH: KOH is highly soluble. This is a strong an readily dissociates in water.

5)  C₆H₆ : It is the benzene ring and is a nonpolar molecule, so it is expect this is insoluble with water.

6) C₆H₁₄ : It is hexane of  long chain of hydrocarbons. There is no hydrogen bonding, this is nonpolar and insoluble in water.

7) KNO₃: It is highly soluble because all nitrates are soluble in the water.

8)  CCl₄ : There is balance of the partial charges which makes it a nonpolar. It  is insoluble in water.

9) Na₂SO₄: It is highly soluble.

10) CH₃CH₂OH: It is highly soluble in water.

11) CH₂Cl₂ : This is polar and due this it is highly soluble in water.

12) CH₃COOH : It is a carboxylic acid. It is highly soluble in water.

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because all students really need to have so may papers

Answer:

paper we get from trees in which we write even many knowledge and valuable things are written in paper which is of tree only.

food is necessary for human being to live stain live. it is because of food only.

wood is needed during the winter to keep ourselves warm it is also needed in cooking food at many villages and towns. and the main thing coal by which we get electricity is also made from wood only.

Answer: Kc, is 1.845 at a given tempera

Explanation:

Answer:

Ionization energy : energy required to take out an electron from the valance orbital of an atom.

Electron affinity: electron affinity of an atom measures the amount of energy released when an electron is forcibly entered or pushed into the valence orbital of an atom.

Ionization energy is the energy required to make an atom into a positive ion. Electron affinity is the energy released when an atom becomes a negative ion.

ionization energy is what is required to remove one electron from a normal gaseous atom to produce a +1 anion of that atom.

electron affinity is the energy required to remove one electron from a gaseous -1 anion of an atom to produce a normal gaseous atom.

Answer:

1.9992x10^-23

Explanation:

The thing is 6.022*10^23 atoms of carbon is 12g. so 1 atom of carbon will contain:

12/6.022*10^23 = 1.9992x10^-23

hope its clear and helps...

Answer:

ecosystem

Ecosystems include both biotic and abiotic factors

The mass of salt in the tank after t minutes is 0.25 kg.

The concentration of salt in the tank will reach 0.03 kg/L after 4 minutes.

The first step requires us to determine the mass of salt in the tank after a certain time, t minutes. Since the brine solution flows at a constant rate of 7 L/min into the tank and the concentration of salt in the brine entering the tank is 0.05 kg/L, the rate of salt inflow is 7 L/min × 0.05 kg/L = 0.35 kg/min.

However, the rate of outflow is also 7 L/min, resulting in an equal rate of salt outflow. Therefore, the net change in the mass of salt over time is zero. Consequently, regardless of the duration, the mass of salt in the tank remains constant at 0.25 kg.

Moving on to the second step, we need to find out when the concentration of salt in the tank will reach 0.03 kg/L. Since the inflow and outflow rates remain constant, the concentration of salt in the tank will decrease linearly over time.

Starting with an initial concentration of 0.05 kg/L and considering the equal rates of inflow and outflow, it takes 2 minutes for the concentration to decrease to half, i.e., 0.025 kg/L. Similarly, it will take an additional 2 minutes for the concentration to decrease from 0.025 kg/L to 0.03 kg/L. Therefore, the concentration of salt in the tank will reach 0.03 kg/L after 4 minutes.

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To determine δsuniv, we can use the formula: δsuniv = δh∘rxn - Tδs∘rxn. Therefore, δsuniv = 46,784 J.

Where δh∘rxn is the standard enthalpy change of the reaction, δs∘rxn is the standard entropy change of the reaction, T is the temperature in Kelvin.
Substituting the given values:
δh∘rxn = δhrxn∘ = 90 kJ
δs∘rxn = δsrxn∘ = 148 J/K
T = 292 K
We need to convert kJ to J, so δh∘rxn = 90,000 J.
Now we can calculate δsuniv:
δsuniv = δh∘rxn - Tδs∘rxn
= 90,000 J - 292 K x 148 J/K
= 90,000 J - 43,216 J
= 46,784 J

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When carbon atoms bond with hydrogen atoms, they create organic molecules. A molecule composed entirely of carbon and hydrogen atoms that are covalently bonded together is referred to as a hydrocarbon. Hydrocarbons come in a variety of shapes and sizes, from the simple methane (CH4) molecule to the more complicated hexadecane (C16H34) molecule.

Carbon and hydrogen covalent bonds are nonpolar, meaning they share their electrons equally between the atoms involved. As a result, hydrocarbons are nonpolar molecules with low solubility in water and high solubility in nonpolar substances, such as oil and grease. These substances are the basis of life on Earth, making up the lipids that make up the cell membranes of living organisms. Hydrocarbons are a crucial element of energy production since they may be burned as fuel, releasing a large quantity of energy when doing so. However, because of the nonpolar nature of these molecules, they can also be harmful to the environment. They are a major component of fossil fuels, which are the most significant contributor to air pollution and climate change.

A hydrocarbon molecule composed solely of carbon and hydrogen atoms will have nonpolar covalent bonds and, as a result, will be nonpolar. They have low solubility in water and high solubility in nonpolar solvents. They are a crucial component of the energy industry, but they are also hazardous to the environment.

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Answer:

Subatomic particles are the proton (1 amu), neutron (1 amu), and electron (0 amu)

Explanation:

Atomic mass unit (amu; dalton): A unit of mass equal to exactly 1/12 the mass of one 12C atom, or 1.660538921 x 10−27 kg. This is the approximate mass of one proton or one neutron. It is the basis of atomic weights.

Answer:

\(\boxed{\mathrm{see \: below}}\)

Explanation:

Protons have a mass of 1 amu (atomic mass unit).

Electrons have a mass of \(\frac{1}{1840}\) amu (atomic mass unit).

Neutrons have a mass of 1 amu (atomic mass unit).

In the beta oxidation pathway, which of these is produced when ATP is consumed is CH₃(CH₂)n-₄COCH₂CO-COA

Option A is correct .

Each round of mitochondrial beta-oxidation produces one acetyl CoA molecule, one FAD(2H) molecule, one NADH molecule, and four ATP equivalents. Specific enzymes are required for the metabolism of fatty acids during beta oxidation.

Due to their higher H+ concentration, saturated fats do indeed contain more gross energy. Nonetheless, unsaturated fats are more edible and have higher ingestion rate, and in this manner the metabolizable energy that unsaturated fats give is higher than that given by soaked fats.

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The conformation of a polypeptide's backbone is described by the angles of rotation about the peptide bonds.

The most common type of conformation is an alpha helix, in which the peptide bond rotates at an angle of approximately 100 to 120 degrees in a clockwise direction. This arrangement of the peptide bond contributes to an increase in the stability of the polypeptide, as the bonds form hydrogen bonds between the amino acids. This arrangement also allows for more efficient folding of the polypeptide, allowing for better functionality of the proteins involved. To calculate the angle of rotation for a given polypeptide, the bond length, bond angle, and torsional angle must all be known. First, the bond length must be determined from the x-ray data.

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Answer:

B.) He added a base to raise the PH

Explanation:

Took test

Answer:

B

Explanation:

I took the test!

The balanced chemical can be used to model acetylene combustion. 4CO2 gas and 2H2O gas are produced when 2C2H2 and 5O2 gas combine.

To calculate the amount of co2 produced, multiply total moles of limiting reactant by the stoichiometric ratio of co2 in the reaction. To calculate the empirical formula of your reaction, multiply the moles od CO2 produced by the cellulose of CO2, which is 44.

The excess reagent is the reactant that yields more product than any other. Subtract any mass of oxidising agent eaten from the total weight of element or compound provided to determine the amount of surplus reactant that is still present.

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Answer:no

Explanation:

To calculate a chemical equation, balance the number of atoms of each element on both sides of the equation. Once the equation is balanced, calculate the number of moles of each reactant or product required for a specific chemical reaction.

A chemical equation is a written representation of a chemical reaction. It shows the reactants on the left side of an arrow and the product on the right side of the arrow.

First, balance the number of atoms of each element on both sides of the equation. If the equation is not balanced, add coefficients to the reactants or products to balance the number of atoms of each element.

A balanced equation can be used to calculate the number of moles of each reactant or product required for a specific chemical reaction. Use the molar mass of each reactant or product and the balanced equation.

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The mass defect (deficit) in amu/atom is 0.109879 amu/atom of an atom of 105In has a mass of 104.914558 amu.

The mass of an atom is the sum of the masses of its protons, neutrons, and electrons.

The mass of an atom is generally less than the sum of the masses of its subatomic particles.

The difference between the sum of the masses of its protons, neutrons, and electrons and the mass of an atom is

known as the mass defect.

Mass defect = [(Z × mp + N × mn) − M]

where, Z = the atomic number; N = the number of neutrons; mp = mass of proton; mn = mass of neutron; and M = mass of nucleus.

In this case, mass defect = [(49 × 1.007825 + 56 × 1.008665) − 104.914558] amu/atom = 0.109879 amu/atom.

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pH is the hydrogen ion concentration and pOH is the hydroxide ion concentration in the solution. pH KOH is 12.73, pOH KOH is 2.24 and pH NaCl is 7.

pH is the negative log of the hydrogen ion concentration and pOH is the negative log of the hydroxide ion concentration.

The relation between the pH and pOH can be given as, \(\rm pOH = 14 - pH\)

The pH of KOH can be calculated by the formula,

\(\rm pH = \rm -log [H^{+}]\)

In the first case, the concentration of the KOH is \(1. 87 \times 10^{-13}\;\rm M\)

Substituting values in the equation:

\(\begin{aligned} \rm pH &= \rm -log [H^{+}]\\\\&= \rm -log [1. 87 \times 10^{-13}\;\rm M ]\\\\&= 12.73\end{aligned}\)

Hence, the pH of KOH is 12.73.

pOH of KOH can be calculated by the formula,

\(\rm pOH = \rm -log [OH^{-}]\)

The hydroxide concentration of the KOH solution is \(5. 81 \times 10^{-3}\;\rm M\)

Substituting value in the equation:

\(\begin{aligned} \rm pOH &= \rm -log [OH^{-}]\\\\&= \rm -log [5. 81 \times 10^{-3}\;\rm M ]\\\\&= 2.24 \end{aligned}\)

Hence, the pOH of KOH is 2.24

The pH of NaCl can be calculated by the formula,

\(\rm pH = \rm -log [H^{+}]\)

In the third case, the concentration of the NaCl is \(1. 00\times 10^{-7}\;\rm M\)

Substituting values in the equation:

\(\begin{aligned} \rm pH &= \rm -log [H^{+}]\\\\&= \rm -log [1. 00 \times 10^{-7}\;\rm M ]\\\\&= 7 \end{aligned}\)

Hence, the pH of KOH is 7.0.

Therefore, KOH is basic and NaCl is approximately neutral.

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Answer:

C: The shape of the pebbles is a result of weathering and deposition

Explanation:

For the several pebbles to have a rounded shape and smooth to the touch, it will undergo weathering and deposition. This is because weathering involves breaking down of rocks and creating new sediments. This weathering could be either chemical weathering or physical weathering where Chemical weathering is the decomposition of rocks which are caused by chemical reactions and which result in formation of new compound while physical weathering is the breakdown of rocks into smaller pieces. On the other hand, deposition occurs when the agents of erosion such as wind or water deposit sediments from one spot to another which in turn changes the shape of the land.

Thus, the shape of the pebbles are as a result weathering of the parent rocks and from deposition.

After benzocaine is mixed with hydrochloric acid, it will be 4-aminobenzoic acid and soluble in the water.

Benzocaine, sold beneath the counter emblem called Orajel amongst over-the-counters, is an ester nearby ones over the counter normally used as a topical ache reliever or in cough drops. it's a far over-the-counter lively factor in many ones over counter ointments consisting of merchandise for oral ulcers.

Benzocaine is used to relieve aches and itching resulting from conditions that include sunburn or different minor burns, insect bites or stings, poison ivy, poison oak, poison sumac, minor cuts, or scratches.

Benzocaine is a local over-the-counter used in pain manage management, and it's far over-the-counter ester neighborhood ones over-the-counter elegance of medication. This pastime describes over-the-counter symptoms, actions, and contraindications for benzocaine as a valuable agent in coping with ache control.

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Answer:

keep your skin moisturized

Explanation:

but if your crowd produces excessive lubricate, it can cause blemishes. However, skilled is a bright side -- lubricate keeps skin smooth and wet, making it less inclined wrinkle