Calculate the [OH-] in a solution with [H+] = 7. 9*10(-5)M

Answer:

0.57 molecules

Explanation:

Answer:

d)the energy possessed by an electron at a set distance from the nucleus

The final volume of the gas container is approximately 0.366 liters.

A gas container refers to a vessel or container that is designed to hold or store gases. It can be a tank, cylinder, canister, bottle, or any other enclosed space specifically intended for the containment of gases.

Gas containers are typically constructed from materials that are suitable for safely storing gases under the desired conditions.

To find the final volume of the gas container, we can use the combined gas law equation:

\((P_1 \times V_1) / T_1 = (P_2 \times V_2) / T_2\)

where P1 and P2 are the initial and final pressures, V₁ and V₂ are the initial and final volumes, and T₁ and T₂ are the initial and final temperatures, respectively.

Given:

Initial volume (V₁) = 500 mL = 0.5 L

Initial temperature (T₁) = 299 K

Initial pressure (P₁) = 1 atm

Final temperature (T₂) = 333 K

Final pressure (P₂) = 1.54 atm

Let's plug in the values into the equation and solve for the final volume (V₂):

(1 atm × 0.5 L) / 299 K = (1.54 atm × V2) / 333 K

Simplifying the equation:

0.0017 = (1.54 atm × V2) / 333 K

Now, we can solve for V2:

V₂ = (0.0017 × 333 K) / 1.54 atm

V₂ ≈ 0.366 L

Therefore, the final volume of the gas container is approximately 0.366 liters.

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The heat energy teaspoon of boiling water and a swimming pool full of room temperature water then swimming pool have more heat energy than the teaspoon of boiling water

Heat energy is the result of movement of tiny particles called as atom, molecule, or ion in solid liquid and gases and heat energy is the transfer from one object to the another and in Celsius scale water freezes at 0°C and boil at 100°C to 90°C however the swimming pool contains a lot more water therefore the pool has more thermal energy than the cup of tea even though the tea is hotter than the water in the pool that's why heat energy is more in the swimming pool then in teaspoon of boiling water

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Answer:

SO4²

Explanation:

Formula and structure: The sulfate ion formula is SO42- and the molar mass is 96.06 g mol-1. This salt is formed by one sulfate center to which 4 atoms of oxygen are attached, 2 of these atoms are forming S=O.

Answer:

\(so _{4} ^{2 - } \)

Explanation:

sulfate is consisting of sulfur element with 4 oxygen as the structure in the pic given and this group is 2- charged

It generate carbon dioxide, water, or energy in the shape of ATP, oxygen is necessary for aerobic respiration.

The energy that was stored in lipids and glucose during photosynthesis is released during the process of aerobic respiration and made available to living things. Gluconeogenesis, the link response, the Krebs cycle, and oxidative phosphorylation are the four phases.

Two ATP molecules are invested during the glycolysis energy-investment phase, which results in the production of two glyceraldehyde phosphate molecules. One ATP is used by hexokinase to turn glucose into glucose-6-phosphate, which is subsequently changed into ADP.

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Answer:

6.02 × 10^23 molecules = 1 mole

5.27 × 10^45 molecules = x

x = 5.27 × 10^45/ 6.02 × 10^23 × 1

= 8.754 × 10^21 mol

I don't know if it's correct but based on the question that was the only way I saw how to work it out

Answer:

l+o=n

Explanation:

i think that is it I am sorry if my wrong

The molecule that has a central atom that is sp3 hybridized is CH3Cl. To determine the hybridization of an atom, we need to count the number of electron groups around the central atom.

In this case, the central atom in CH3Cl is carbon (C). CH3Cl has four electron groups around the central carbon atom: three sigma bonds with hydrogen (C-H bonds) and one sigma bond with chlorine (C-Cl bond). Each sigma bond counts as one electron group.

The four electron groups indicate that the carbon atom is sp3 hybridized. In sp3 hybridization, the carbon atom forms four sigma bonds with four electron groups, resulting in a tetrahedral geometry. Therefore, the correct answer is CH3Cl.

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In the given diagram, the gray unit represents the process of transcription, which involves the conversion of DNA into RNA. Transcription factors are proteins that bind to specific DNA sequences known as promoters, which are regions that signal the start of a gene.

Once the transcription factors are bound to the promoter, they recruit RNA polymerase, which is the enzyme responsible for catalyzing the synthesis of RNA. RNA polymerase moves along the DNA strand and reads the sequence, creating a complementary RNA strand. This process is essential for gene expression and the production of proteins, as RNA serves as a template for protein synthesis. The transcription process is regulated by various factors, including the availability of transcription factors, the strength of the promoter, and the activity of RNA polymerase. In summary, the gray unit in the diagram represents the complex process of transcription, which requires the coordinated action of multiple components to generate RNA from DNA.

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The value of ΔH for the reaction CO(g) + H₂(g) + O₂(g) → CO₂(g) + H₂O(g) is -1272 kJ.

To calculate the enthalpy change (ΔH) for the given reaction, we can use Hess's law, which states that the overall enthalpy change of a reaction is equal to the sum of the enthalpy changes of the individual reactions involved.

Given the enthalpy changes:

1. 2 C(s) + O₂(g) → 2 CO(g)... ∆H = -222 kJ

2. C(s) + O₂(g) → CO₂(g)... ∆H = -394 kJ

3. 2 H₂(g) + O₂(g) → 2 H₂O(g)... ∆H = -484 kJ

We need to manipulate these reactions to obtain the desired reaction:

1. Reverse reaction 2: CO₂(g) → C(s) + O₂(g)... ∆H = +394 kJ

2. Multiply reaction 2 by 2 to balance carbon atoms: 2 CO₂(g) → 2 C(s) + 2 O₂(g)... ∆H = -788 kJ

3. Leave reaction 3 unchanged: 2 H₂(g) + O₂(g) → 2 H₂O(g)... ∆H = -484 kJ

By adding reactions 2 and 3, we obtain the desired reaction:

CO(g) + H₂(g) + O₂(g) → CO₂(g) + H₂O(g)... ∆H = -788 kJ + (-484 kJ) = -1272 kJ

Therefore, the value of ΔH for the given reaction is -1272 kJ.

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Complete this table relating the values of E cell and ΔG to the Q/K ratio, given below:

In an electrochemical cell, the potential difference between two half cells is measured by the cell potential, or Ecell. The capacity of electrons to go from one half cell to the other is what determines the potential difference.

The following is how the Nernst equation may be represented for measurements made at 298K. E = E₀ - 0.0592/n log10 Q.

As a result, according to the Nernst equation, the reaction quotient determines the overall potential of an electrochemical cell.

Because they are not spontaneous, electrolytic cells, which are reactions that only take place with the input of an external energy source, are considered negative. They're spontaneous if Ecell is positive.

The completed table is given below:

Q/K            Ecell            delta G

<1               >0                  <0

=1               =0                  =0

>1               <0                  >0

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No, the reaction is not at equilibrium. In order for the reaction to reach equilibrium, the reaction must proceed in the forward direction.

Direction is an instruction or indication of what to do, how to do it, or where to go. It is the purpose or aim of a plan, endeavor, or action. Direction also refers to the specific guidelines that one must follow to reach a particular goal. It can be thought of as the way or path that one takes to reach a desired outcome. Direction can be provided by a leader, a mentor, or someone with experience and expertise. It can also be provided by a set of principles or guidelines. Direction is important for working towards a goal, as it can help provide focus and clarity. It can also help to keep people on track and ensure that they are working towards the right goal.

This will result in the formation of additional N2O and O2 molecules, while consuming the existing NO2 and NO molecules.

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To calculate the mass of Na2CO3 needed to react with 25 mL of 0.1 M HCl, we will first need to find the moles of HCl, and then use the balanced chemical equation to determine the moles of Na2CO3 required.

Finally, we'll convert moles of Na2CO3 to mass using its molar mass. The balanced chemical equation for the reaction is:
Na2CO3 + 2HCl → 2NaCl + H2O + CO2

1. Calculate moles of HCl:
moles = Molarity × Volume (in liters)
moles = 0.1 M × (25 mL / 1000)
moles = 0.0025 mol HCl

2. Determine moles of Na2CO3 required:
From the balanced equation, 1 mol of Na2CO3 reacts with 2 mol of HCl.
So, moles of Na2CO3 = (0.0025 mol HCl) / 2
moles of Na2CO3 = 0.00125 mol

3. Calculate mass of Na2CO3:
mass = moles × molar mass
molar mass of Na2CO3 = (2 × 22.99) + 12.01 + (3 × 16.00) = 105.99 g/mol
mass = 0.00125 mol × 105.99 g/mol
mass ≈ 0.13 g, So, approximately 0.13 g of Na2CO3 is needed to react with 25 mL of 0.1 M HCl.

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A solution is defined as a mixture of two or more substances, usually, a solute and a solvent, and the difference between these two are in quantity, solute represents the smallest amount and solvent will represent the highest amount, and while you can have more than one solute, you can only have one solvent for a solution. Therefore the statement is true

Answer:

Al and Hcl

Explanation:

Reactants are the elements, compounds etc before the arrow

1) Groups of elements in the periodic table.

On the left, there are several types of metals and on the right, there are nonmetals, halogens, and noble gases.

There is a group that is between those mentioned above, the semi-metals also known as Metalloids.

.

Answer: nutrient

Explanation:

In an ecosystem like where a farmer  stopped maintaining a field that was once used to grow crops. Over time, the field eventually became a forest. These changes best illustrate the process of nutrient recycling.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer: Before Rutherford

Explanation:

The plum pudding model was proposed by J.J. Thomson in 1904, before the experiments conducted by Ernest Rutherford in 1909 that led to the discovery of the atomic nucleus. Therefore, the correct answer is "Before Rutherford".

Answer:

Before Bohr and Rutherford

Explanation:

The plum pudding model was proposed by J.J. Thomson in 1904, before both Ernest Rutherford's gold foil experiment in 1911 and Niels Bohr's atomic model in 1913. Therefore, the correct answer is before Bohr and Rutherford.

The amide produced from pentanoic acid and ammonia is pentanamide. To form this amide, pentanoic acid reacts with ammonia in a process called amidation.

Here's a step-by-step explanation:

1. Pentanoic acid (C4H9COOH) has a carboxyl group (-COOH) at one end.

2. Ammonia (NH3) has a lone pair of electrons on the nitrogen atom, making it a nucleophile.

3. The nitrogen atom in ammonia attacks the carbonyl carbon atom in pentanoic acid, forming a tetrahedral intermediate.

4. The intermediate collapses, expelling a hydroxyl group (-OH) from the carboxyl group and forming a new bond between the nitrogen and carbonyl carbon atoms.

5. The product is pentanamide (C4H9CONH2), an amide formed from pentanoic acid and ammonia.

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The given compound is a cis isomer as it has double bond and functional group present on same side.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

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Answer:

Acidosis is a condition where the pH of blood is below 7.35, indicating an excess of acid in the blood. This can be caused by a variety of factors, including respiratory or metabolic disorders, diabetes, and kidney disease. Symptoms of acidosis can include fatigue, confusion, shortness of breath, and even coma or death in severe cases.

Answer: Answer is below <3

Explanation: A mutant protein is the protein product encoded by a gene with mutation. Mutated protein can have single amino acid change (minor, but still in many cases significant change leading to disease) or wide-range amino acid changes by e.g. truncation of C-terminus after introducing premature stop codon.

A number of mutant proteins, including huntingtin, atrophin1, the androgen receptor, ataxin1, ataxin2, ataxin3, alpha 1A subunit of the Cav2.

Answer: Keep It Simple: 2.3 L

Explanation:

At the constant pressure, the final volume of neon gas was equal to 2.31 L at a temperature of 25ºC.

Charles's law can be explained as the pressure of the gas has to be kept constant, and the volume of gas has a direct relationship with the absolute temperature.

Therefore, V  ∝ T

or    V₁/T₁= V₂/T₂                                              ..................(1)

Given, the initial temperature of the neon gas, T₁ = 50 ºC

T₁ = 50 + 273 = 323 K

The final temperature of neon gas, T₂ = 25 ºC

T₂ = 25 ºC + 273 = 298 K

Given, the initial volume of the neon gas, V₁  = 2.5 L

Substitute the value of V₁, T₁, and T₂ in equation (1) to find the final volume of the gas:

2.5/323= V₂/298

V₂ = 2.31 L

Therefore, the final volume of the neon gas is equal to 2.31 L at 25 ºC, when there is no change in the pressure.

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Answer:

Organ Movement Food Particles Broken Down

Stomach Upper muscle in stomach relaxes to let food enter, and lower muscle mixes food with digestive juice Proteins

Small intestine Peristalsis Starches, proteins, and carbohydrates

Pancreas None                    Carbohydrates, fats, and proteins

Liver         None                Fats

Explanation: