Which of these best describes the triacylglycerols of naturally-occurring fats (ascompared to oils?A. low melting pointsB. more saturated fatty acidsC. more unsaturated fatty acidsD. shorter carbon chain lengths

If you started with 1.5 moles of H2 at STP, you would have approximately 33.6 liters of volume of hydrogen (H₂) gas.

To determine the number of liters of H2 you have, we need to consider the conditions under which the gas is being held (i.e. temperature and pressure), as well as the molar volume of H2 at those conditions.

At standard temperature and pressure (STP), which is 0°C (273.15 K) and 1 atm (101.325 kPa), the molar volume of any ideal gas is approximately 22.4 L/mol.

Therefore, at STP, 1.5 moles of H₂ would occupy approximately:

V = n x Vm = 1.5 mol x 22.4 L/mol = 33.6 L

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The complete question is below:

HOW MANY LITERS OF H2 DO YOU HAVE IF YOU START WITH 1.5 MOLES OF H2? (assume STP condition)

Answer:

Reduced air pressure also has a serious effect on the human body. Reduced air pressure means that there is less oxygen available to the body. For lungs to inflate, the air pressure in your lungs has to be less than the air outside the lungs. This is because air moves from high-pressure areas to low-pressure areas.

Explanation:

Reduced air pressure also has a serious effect on the human body. Reduced air pressure means that there is less oxygen available to the body. For lungs to inflate, the air pressure in your lungs has to be less than the air outside the lungs. This is because air moves from high-pressure areas to low-pressure areas.

Answer:

Wavelength (λ) = 1.875 × 10⁻⁶ m

Explanation:

Given:

Energy (e) =  1.06 × 10⁻¹⁹ J

Find:

Wavelength (λ) = ?

Computation:

e = hc / λ

λ = hc / e

where c = 3 × 10⁸

Planck's constant (h) = 6.625 × 10⁻³⁴

So,

Wavelength (λ) = (6.625 × 10⁻³⁴)(3 × 10⁸) / (1.06 × 10⁻¹⁹)

1. Wavelength (λ) = 1.875 × 10⁻⁶ m

2. Given n = 4 to n = 3 both are integer not fraction so, electron is quantize

Hardness in water can be measured using the following techniques:

1. EDTA Titration (Complexometric Titration)

For the determination of water hardness, this method is widely used. The estimation of ions such as calcium, magnesium, etc. in a sample of water can be determined by using EDTA titration.EDTA stands for ethylenediaminetetraacetic acid, which is a popular chelating agent that is used as the titrant in the complexometric titration of Ca2+ and Mg2+. A buffer solution with a pH of around 10 is used to perform the titration. The Ca2+ and Mg2+ in the sample being tested react with the EDTA, and the amount of EDTA used to complex the metal ions is determined by an appropriate method.

2. Atomic Absorption Spectroscopy (AAS)

The atomic absorption spectroscopy (AAS) technique can also be used to calculate water hardness. Calcium and magnesium in the water sample are detected using AAS.AAS is a technique that detects the absorption of light by the vaporized atomic state of the element being studied. The quantity of the element present in the sample being tested is calculated by measuring the amount of absorption.

3. Ion-selective Electrode (ISE) Analysis

The most effective technique for measuring water hardness is ion-selective electrode (ISE) analysis. An ion-selective electrode is a membrane electrode that recognizes and responds to specific ions' presence.ISE analysis is a cost-effective and fast technique that produces immediate results. It can be used to test water in a variety of environments.

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The correct formula for the product of the reaction between strontium metal and nitrogen is Sr₃N₂.  Correct option is B.

When strontium metal reacts with nitrogen, it forms an ionic compound with the formula Sr₃N₂, in which three strontium cations (Sr²⁺) are present for every two nitride anions (N³⁻).

This reaction is an example of a synthesis reaction, in which two or more substances combine to form a more complex product. The balanced chemical equation for this reaction is: 3 Sr(s) + N₂(g) → Sr₃N₂(s)

It is important to note that the subscript numbers in chemical formulas represent the ratio of atoms or ions in the compound. In this case, Sr₃N₂ indicates that three strontium ions are combined with two nitride ions to form the product.

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The half-life of a radioactive isotope is the amount of time it takes for half of the atoms in a sample to decay.

A radioactive isotope is an unstable form of an element that emits radiation as it decays. It is produced when a neutron is added to the nucleus of an atom, making it unstable and prone to radioactive decay. Radioactive isotopes are used in a variety of medical, scientific and industrial applications. In medicine, they are used to diagnose and treat diseases, while in industry they are used to detect flaws in materials. In scientific research, they are used to measure age and composition of materials.

Therefore, the half-life of this isotope is 12.75 years, since it takes 5.4 percent of the atoms in a sample to decay per year. This means that if we start with a sample of 100 atoms, after 12.75 years, only 50 atoms would remain in the sample. After 25.5 years, only 25 atoms would remain, and so on. This can be calculated by taking the natural log of 2 and dividing it by the decay rate of the isotope, which in this case is 5.4%.

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When H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases (option C)

A French scientist (Chatelier) postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states that If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

According to Chatelier's principle a decrease in concentration of the products will favor the forward (right) reaction.

From the above principle, we can conclude that when H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases.

Thus, the correct answer to the question is option C

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The energy in the ground state of the electron confined in a 10 nm box is approximately 10.89 eV, and the energy in the first excited state is approximately 43.56 eV.

To calculate the energy of an electron confined in a 10 nm box, we can use the formula for the energy levels of a particle in a one-dimensional infinite potential well:

E_n = (n^2 * h^2) / (8 * m * L^2)

where:

E_n is the energy of the nth energy level,

n is the quantum number of the energy level (n = 1 for the ground state),

h is the Planck's constant (6.626 x 10^-34 J·s),

m is the mass of the electron (9.10938356 x 10^-31 kg),

L is the length of the box (10 nm = 10 x 10^-9 m).

Let's calculate the energy in the ground state (n = 1) and the first excited state (n = 2):

For the ground state (n = 1):

E_1 = (1^2 * h^2) / (8 * m * L^2)

Substituting the values:

E_1 = (1^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2)

Calculating this expression will give us the energy in the ground state.

For the first excited state (n = 2):

E_2 = (2^2 * h^2) / (8 * m * L^2)

Substituting the values:

E_2 = (2^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2)

Calculating this expression will give us the energy in the first excited state.

Please note that the energies calculated will be in joules (J). If you prefer electron volts (eV), you can convert the results by dividing by the electron volt value (1 eV = 1.602 x 10^-19 J).

Performing the calculations:

For the ground state:

E_1 = (1^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2) ≈ 1.747 x 10^-18 J

For the first excited state:

E_2 = (2^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2) ≈ 6.987 x 10^-18 J

Converting the energies to electron volts (eV):

E_1 ≈ 10.89 eV (rounded to two decimal places)

E_2 ≈ 43.56 eV (rounded to two decimal places)

Therefore, the energy in the ground state of the electron confined in a 10 nm box is approximately 10.89 eV, and the energy in the first excited state is approximately 43.56 eV.

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Answer:

IT IS A C D I GOT IT WRONG FROM THE ANSWER ON TOP OF ME

Explanation:

Answer:

88.58 inches

Explanation:

You would just divide 225 by 2.54

Answer:

88.5827

Explanation:

The rate constant for the first-order decomposition of H2O2 with a half-life of 660 minutes is approximately \(0.00105 min^(-1).\)

To find the rate constant for the first-order decomposition of H2O2 with a half-life of 660 minutes, you can use the following formula:
rate constant (k) = ln(2) / half-life

Step 1: Plug in the given half-life value.
k = ln(2) / 660 minutes

Step 2: Calculate the rate constant.
\(k ≈ 0.00105 min^(-1)\)
So, the rate constant for the first-order decomposition of H2O2 with a half-life of 660 minutes is approximately 0.00105 min^(-1).

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The strongest bond in the given group is the C≡C since it is a triple covalent bond.

The correct option is D

Covalent bonds are the bonds formed by the sharing of electrons between two atoms that have electronegativity values close to each other.

Covalent bonds are usually formed between non-metal atoms.

Depending on the number of electron pairs shared between two atoms, covalent bonds can be divided into:

single covalent bonds - involve the sharing of an electron pair

double covalent bonds -involve the sharing of two electron pairs

triple covalent bonds - involve the sharing of three electron pairs. This is the strongest covalent bond.

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Answer:

0.0008127

Explanation:

This is easy

3 AgN03 + 1 Al ---> 3 Ag + 1 Al(NO3)3

1890 mL of a 0.35 M NaF solution would be needed to completely react with 869 mL of a 0.38 M SrCl2 solution.

The balanced chemical equation for the reaction between sodium fluoride (NaF) and strontium chloride (SrCl2) is:

2NaF + SrCl2 → 2NaCl + SrF2

According to the equation, 2 moles of NaF are required to react with 1 mole of SrCl2.

First, we need to calculate the number of moles of SrCl2 present in 869 mL of a 0.38 M solution:

0.869 L x 0.38 mol/L = 0.33 mol SrCl2

Next, we can use the stoichiometry of the balanced equation to determine the number of moles of NaF required:

0.33 mol SrCl2 x (2 mol NaF / 1 mol SrCl2) = 0.66 mol NaF

Finally, we can calculate the volume of a 0.35 M NaF solution containing 0.66 moles of NaF:

0.66 mol NaF / 0.35 mol/L = 1.89 L or 1890 mL

Therefore, 1890 mL of a 0.35 M NaF solution would be needed to completely react with 869 mL of a 0.38 M SrCl2 solution.

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Answer:the element contain only one type of atomic while the cpd contain more than two types of atoms

Explanation:

Answer:

Below

Explanation:

For 8 slices of bread   you need  

8 eggs<==== you do not have enough ( enough for 6 slices)

 2 cups of milk <====== you do not have enough  ( enough for 4 slices)

  2 tsp of ground cinnamon  <==== you do not have enough ( enough for 3)

   2 tsp of ground nutmeg <===== you do not have enough (enough for 4)

SO ALL of the ingredients are limiting ingredients for the 8 slices of bread

  you will run out of cinnamon first  <==it is the MOST limiting  

Answer: B ground cinnom

Explanation:

Answer:

The End Result Of Diffusion Is An Equal Concentration, Or Equilibrium, Of Mocules On Both Sides Of The Membrane.

Explanation:

☺️ Hope It helps Ty.

Answer:

A saturated solution may not be a concentrated solution IF the solute is only sparingly or slightly soluble in the solution.

The mass of Barium-122 left is 0.313 g. All nuclear reactions are of first order reactions.

A first-order reaction is one in which the rate of reaction is proportional to the concentration of the reactant. For a first order reaction rate constant,

k = ( 2.303 /t )x log ( Mo / M)

Where

Mo = initial mass= 10.0 g

M= Mass left after time t = ?

t = time = 10 min

k= rate constant= 0.693/half life

= 0.693/2 min

= 0.3465 min^-1

Plug the values we get log(Mo/M) = (kt)/2.303

= (0.3465*10)/2.303

= 1.504

Mo/M=10^1.504 = 31.9

M= 10.0g/31.9

  = 0.313 g

So, mass of Barium-122 left is 0.313g.

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The resulting solution is composed of separate sodium ions and carbonate ions surrounded by water molecules.

The Gibbs free energy (ΔG) is the difference between the free energies of reactants and products in a thermodynamic system.

For a two-step reaction, the total Gibbs free energy can be calculated as

ΔG° = ΔG° of first reaction (ΔG1°) + ΔG° of second reaction (ΔG2°)

Given ∆G1⁰ = –7.1 kilojoules/mol (kJ/mol) and ∆G2⁰ = +1.7 kJ/mol.

Therefore ΔG⁰ = (–7.1) + (+1.7)

= - 5.4 kJ/mol

The total free energy sum is obtained by subtracting the values ​​of ΔG1⁰ and ΔG2⁰, since the change in Gibbs free energy given in successive reactions is negative and positive respectively. free energy is negative) not 8.8 (obtainable after adding values). Therefore options a, b, d, and e are not correct. 

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process energy and nutrients.

All cells use changes in its DNA to adapt to its environment. Hope I helped!

Answer:

Answer:

4.921.

Explanation:

It is an acidic buffer solution;

∵ pH = pKa + log[salt]/[acid].

∴ pH = - log(1,8 x 10⁻⁵) + log[0.75/0.50] = 4.745 + 0.1761 = 4.921.

Explanation:

The pH of acid is between 0-7 on pH scale while for base pH range is from 7-14.  pH is a unitless quantity. Therefore,  the pH of a solution that was 0.75 M acetic acid is 4.921.

pH is a measurement of amount of hydronium ion H₃O⁺ in a given sample. More the value of hydronium ion concentration, more will be the solution acidic.

On subtracting pH from 14, we get pOH which measures the concentration of hydroxide ion in a given solution. pH depend on the temperature. At room temperature pH scale is between 0 to 14. pH of neutral solution is 7.

pH of acetic acid= pKa + log[salt]/[acid]

pH of acetic acid = - log(1,8 x 10⁻⁵) + log[0.75/0.50]

      = 4.745 + 0.1761

      = 4.921

Therefore,  the pH of a solution that was 0.75 M acetic acid is 4.921.

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Answer:3,4,1,2

Explanation:

hope this helped

Answer: Calcium

Hope this helps

The term evapotranspiration combines infiltration and transpiration is False.

False. The term evapotranspiration does not combine infiltration and transpiration. Evapotranspiration refers to the combined process of evaporation and transpiration.

Evaporation is the process by which water changes from a liquid to a gas state and is primarily driven by heat energy from the sun. Transpiration, on the other hand, is the process by which plants release water vapor through their leaves.

Infiltration, however, is a separate process that refers to the downward movement of water from the surface into the soil. It is not directly related to evapotranspiration.

Therefore, the term evapotranspiration does not combine infiltration and transpiration.

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